Monday, July 20, 2015

Abstract : Department of Mathematics



THE APPLICATION OF C++ PROGRAMMING IN THE SIMPLEX METHOD

Abstract

            In this paper, we first introduce the general linear programming problem and then a mechanism to convert any general linear programming problem into the standard form.
            In chapter II, we present a systematic method for iteratively moving from one extreme point to an adjacent extreme point in the search for an optimal solution. We first discuss the algebra of simplex method and then the simplex method in tableau form. The aim of this paper is not only to understand the mechanics of the tableau method, but also the theoretical foundation upon which the mechanical operations are built.
            Finally, we solve the linear programming problem by using a computer program with C++ language.


SOME INTEGER LINEAR PROGRAMMING PROBLEMS

Abstract

            In this thesis, we introduce integer linear programming models that are linear programming problems in which some or all of the variables are restricted to be integers. Thesis begins by examining the graphical solution of simple integer program. This is followed by a discussion of various techniques for formulating integer programming models. Finally, we present cutting plane method and branch and bound method for solving integer programming problems.


GAME THEORY AND SOME APPLICATIONS

Abstract

            A competitive situation is called a game. The term game represents a conflict between two or more players.
            In this paper, we will consider only the simplest kinds of games, that is, games involving:
1.                  Only two players
2.                  A payoff of some amount after each play such that one player’s win is the other player’s loss. With the indicated restrictions, we will be able to determine the best (optimal) strategies of play for each person.
In the last section, we give the relation between game theory and linear programming.


EULER TOURS AND ITS APPLICATIONS

Abstract

            In this thesis, we introduce some basic definitions for Euler tours and give some examples. Next we state equivalent conditions for the eulerian graph. We present how to solve the Postman problem for any undirected graph and directed graph.


PHYSICAL SYMMETRIES PRESERVING TRANSITION PROBABILITY

Abstract

            We present the characterization of θ-bilinear forms on V × V inducing the same dualities where V is an n-dimensional vector space over a division ring D, and θ, an anti-automorphism of D. Next, we also present the form of anti-automorphisms of the logic. Using these results, we shall characterize the form of physical symmetry transformations preserving transition probability.


PROJECTIONS ON INNER PRODUCT SPACES

Abstract

            We shall obtain new vector spaces from old ones, namely, direct sum. We present a special type of linear transformations, namely, projections. We also present connections between direct sums and projections. Last, we shall also obtain the partial ordering relation on the set of all orthogonal projections on an inner product space.


UNITARY OPERATORS ON INNER PRODUCT SPACES

Abstract

            We will characterize linear transformations on F(n), linear transformations from one space to another, linear functionals and adjoints. We also discuss linear functionals, adjoints and unitary operators on inner product spaces, and their properties. The last of our discussion is that for every invertible complex matrix n × n there exists a unique lower-triangular matrix.


SPECTRAL THEORY OF OPERATORS

Abstract

            In this thesis we shall discuss the eigenvalues and eigenvectors of an operator. We shall find that matrices represent an operator on an invariant subspace of a finite dimensional space. We shall also find that matrices represent an operator in a generalized null space. We finally express that if Λ be an arbitrary square matrix and a matrix Γ whose columns are eigenvectors and genedralized eigenvectors of Λ then Γ-1 Λ Γ is a matrix in the Jordan canonical form.


TREES AND MINIMUM SPANNING TREES

Abstract

            Trees are central to the structural understanding of graphs, and they have a wide range of applications. In this thesis, some basic properties and characterizations of a trees and rooted trees are given. The two algorithms used to construct minimum spanning trees are also presented and some examples are discussed.


SHORTEST PATH ALGORITHMS

Abstract

            We confine our attention to two types of problems: (1) the problem of finding a shortest path from a vertex v to another vertex w, (2) the problem of finding a shortest path from every vertex to every other vertex. So we discuss the Dijkstra algorithm which is to find a shortest path and the shortest distance from a specified vertex to every other vertex. Next we discuss the Floyd-Warshall algorithm and Floyd algorithm which are to find a shortest path and shortest distance from every vertex to every other vertex. Finally we discuss Dantzig algorithm that is a special case of Floyd algorithm.


GENERALIZED INVERSES FOR SOME MATRICES

Abstract

            This thesis describes a generalization of the inverse of a nonsingular matrix, as any solution of a vector equation. We also describe a generalization of the inverse of a nonsingular matrix, as the unique solution of system of matrix equations. It is used for solving linear matrix equations and among other applications for finding an expression of the principal idempotent elements of a matrix


SOME FIXED POINT THEOREMS

Abstract

            In this thesis, the complete metric space and the complete normed space are investigated. Fixed points of a mapping and the principle of contraction mapping in complete metric spaces are studied. Solving the systems of linear equations are discussed by using Banach fixed point theorem. Moreover the Schauder fixed point theorem is also explained.
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ASPECT OF BOUNDED LINEAR OPERATORS ON HILBERT SPACES

Abstract

            The general form of bounded linear functionals on various spaces is studied. Properties of Hilbert-adjoint operators are discussed. Self-adjoint, unitary and normal operators and some of their basic properties are also discussed. Moreover, bounded linear operators and self-adjoint linear operators which are defined on a complex Hilbert space are studied.


NONEXPANSIVE MAPPINGS AND RELATED CLASSES OF MAPPINGS

Abstract

            Some results of nonexpansive mappings are expressed. And several general properties of nonexpansive mapping are presented. Next classes of mapping related to nonexpansive mappings are also studied. Moreover some results about the existence of fixed points for nonexpansive mappings or related classes of mappings on certain classes of Banach spaces are discussed.


CHARACTERIZATION OF CONVEX SETS AND CONVEX FUNCTIONS ON Rn

Abstract

            In this thesis, basic properties of convex sets and convex functions on Rn are studied. We discuss the convexity and lower semi-continuity of functions can be reduced to convexity and closure of their epigraph. Moreover, some algebraic operations that preserve convexity of a function are also discussed.


APPLICATIONS AND ANALYSIS OF BURNSIDE’S THEOREM

Abstract

            Firstly, we discuss the result that a G-set X exists if and only if there exists a homomorphism of G into a set of all permutations of X. Also, we discuss a generalization of this result and the relation between orbit and stabilizer. Finally, we discuss Burnside’s Theorem which is to calculate the number of different arrangements of colorings of object in a set under group permutations, and its several applications.


SOME CHARACTERIZATIONS OF REFLEXIVITY ON NORMED SPACES

Abstract

            The fundamental definitions and examples as well as the most elementary properties of normed spaces such as the continuity of their vector space operations are presented. The bounded linear operators and the properties of quotient spaces formed from normed spaces are examined. The dual space of a normed space and characterizations up to isometric isomorphism of the duals of direct sums, quotient spaces and subspaces of normed spaces are studied. Separability and reflexivity of normed spaces are expressed. The most important of the some characterizations of reflexive normed spaces are discussed.


REPRESENTATION THEORY OF FINITE GROUPS AND BURNSIDE'S THEOREM

Abstract

            In this thesis, we study the part of group theory, especially: If  is a group of order  where  is a prime and  is a natural number, then the center of  is not equal to the set of unit element and all -groups are solvable. It is also found that a representation of a group can be decomposed into irreducible representations; especially: If  is a representation of a group , then for all , the character of ,  is a sum of  roots of unity. As a consequence of this, it is given that the number of irreducible representations of is equal to the number of conjugacy classes of . Finally, by using them, Burnside's Theorem is shown.


PROPERTIES OF IDEALS AND EUCLIDEAN DOMAIN

Abstract

             In this thesis, we discuss rings, subrings and subfields, which are mathematically interesting and the necessary definitions and theorems of division ring and etc: And also discuss properties of ideals.Finally, we explain the important properties of Euclidean domain.


FINITE DIFFERENCE METHODS  FOR DIFFERENTIAL EQUATIONS

Abstract

             In this thesis, we study numerical solutions to differential equations (ordinary or partial) using the finite difference method. The explicit and Crank-Nicolson schemes are developed, and applied to a simple problem involving the heat equation. And then we discuss numerical solutions to the wave equation and Laplace’s equation. Consistency, compatibility, convergence and stability for numerical solutions to differential equations are also investigated.


EUCLIDEAN AND FACTORIZATION DOMAINS

Abstract

             In this thesis we discuss Rings and Ideals, Euclidean Domains and Principal Ideal Domains and Unique Factorization Domains. Firstly we discuss the useful basic definitions and theorems of rings, ideals and the prime elements and the irreducible elements in a commutative ring. Next we present the Euclidean domain and Principal Ideal Domain of integral domain with unity. Finally we discuss the Unique Factorization Domain of an integral domain with unity which include the relation between prime elements and irreducible elements.


CHARACTERIZATIONS OF EIGENVALUES AND EIGENVECTORS

Abstract

             First, we show that a square matrix of size n has at least one eigenvalue. Second, we describe algebraic and geometric multiplicities of eigenvalues and also dicuss some results concerning with them. Finally, we obtain the result that a matrix is diagonalizable if and only if its algebraic and geometric multiplicities are equal for each eigenvalue of this matrix.


ELEMENTS OF FUNCTIONAL ANALYSIS IN BANACH SPACES

Abstract

             The theory of normed spaces in particular Banach spaces and the theory of linear operators defined on them are the most highly developed part of functional analysis; This thesis is the devoted to the basic ideas of these theories. Then the two important theorems in this thesis are open mapping theorem and the closed graph theorem which are the cornerstones of the theory of Banach spaces.


BOUNDED SELF-ADJOINT LINEAR OPERATORS AND THEIR PROPERTIES

Abstract

             In this thesis, we present the bounded self-adjoint linear operators on Hilbert spaces which are mathematically interesting and practically important. And we discuss spectral properties of this operators. Finally, we also discuss the projection operators and their properties.


 CHARACTERIZATION OF LINEAR TRANSFORMATIONS

Abstract

             First, we show that a linear transformation from  into   is represented by matrix with complex entries. Second, we obtain new linear transformations from old linear transformations and also express some results concerning injective and surjective linear transformation. Finally, we have shown that if T is a linear transformation on a finite dimensional vector space then the sum of the dimensions of the range of T and the kernel of T is equal to the dimension of this vector space.


SOLVING THE INTEGER PROGRAMMING PROBLEMS

Abstract

In this thesis, the branch-and-bound algorithm and the Gomory algorithm for integer programming problems are discussed. In addition, some examples of the branch-and-bound algorithm and the Gomory algorithm are also mentioned.


VIBRATIONS OF STRINGS AND MEMBRANES

Abstract

             This thesis is mainly concerned with the vibrations of a string and of a stretched membrane. At first, we give some simple solutions of the wave equation, including solutions known as plane wave. Then we study an important inequality which must be satisfied by every solution of the wave equation. It follows from the inequality that the vaue of the solution of the initial value problem at any given point of space-time depends only on the values of the initial data. Finally, we discuss the vibrations of a taut string of length L with both fixed and of a rectangular frame of length a and width b.


HOMOMORPHISMS AND IMBEDDING OF RINGS

Abstract

             In this thesis we study the rings, integral domain, field, characteristic of a ring, idempotent and nilpotent. Again we also present homomorphism, endomorphism and imbedding of rings.


 LINEAR TRANSFORMATIONS

Abstract

             In this thesis we study the linear transformations. Firstly, we are going to discuss vector spaces, addition of vectors and scalar multiplication, basis and dimension. Again we also study injective and surjective of linear transformations and matrix of a linear transformation relative to the ordered basis and examples.


SOME PROPERTIES OF MATRICES

Abstract

              First, we obtain new matrices by discussing matrix addition and scalar multiplication. Second, we treat new operation on matrices “matrix multiplication” and its properties. We also obtain a fundamental result about Hermitian matrices, matrix-vector products and inner products. Finally, we express substitution methods for inverse of some matrices.


 NONLINEAR SYSTEMS OF DIFFERENTIAL EQUATIONS

Abstract

              This thesis is mainly concerned with solutions of plannar nonlinear systems near equilibrium points resemble those of the linearized system, at least in certain cases. At first we compute the general solution of any planar system using the eigenvalues and eigenvectors. There is a seemingly endless number of distinct cases. We will express in the simplest possible form nearly all of the types of solutions. Finally we discuss the phase plane for nonlinear system and determine the behavior of solutions near equilibrium points.


QUOTIENT TOPOLOGICAL VECTOR SPACES AND LINEAR MAPPINGHS

Abstract

             This thesis carries a detailed study of Hausdorff spaces, locally convex spaces and quotient topological vector spaces. By means of semi-norm, characterization of continuous linear maps on a space and formation of quotient topology with the help of semi-norm are discussed in the thesis.


 FINITE DIFFERENCE APPROXIMATIONS TO THE HEAT EQUATION

Abstract

              In this thesis, we study numerical solutions to the heat equation using the finite difference method. The forward time, centered space, the backward-time centered-space, and Crank-Nicolson schemes are developed, and applied to a simple problem involving the one-dimensional heat equation. And then we consider the consistency, convergence and stability for the numerical solution to the heat equation.


EUCLIDEAN AND POLYNOMIAL RINGS

Abstract

              The material that we consider in this thesis involves the notion of polynomial and the set of all polynomials over a given field. We have some familiarity with the notion of polynomial from our high school days and we have seen some of the things are does with polynomial: factoring them, looking for their roots, dividing one by another to get a remainder and so on. The emphasis we shall give of the concept and algebraic known as a polynomial ring will be a quite different direction from that given in high school. Furthermore we discuss the required definitions and theorems of ring, ideals and homomorphism. We also present the required definitions and theorems of Euclidean ring and principal ideal domain.


 MOTION OF A SYSTEM OF PARTICLES

Abstract

             In this M. Sc. thesis paper, equation of motion, interaction principle, general equation for the motion of system and motion of the centre of mass are studied and impulse, impulsive forces, impact of two bodies, impact of elastic bodies, the principle of linear momentum, Newton’s experimental law and direct impact of two spheres is discussed. Finally some suitable worked examples are presented.


 STUDY ON VORTEX MOTION

Abstract

             In the thesis, vortex motion, vortex filament, rectilinear vortices with relevant examples are discussed. The images of a vortex outside and inside of a circular cylinder are presented. Then the image of a vortex outside and its example are mentioned. Moreover, the image of a vortex filament in a plane is expressed.


 ADJOINT OPERATOR ON INNER PRODUCT SPACE

Abstract

              In this thesis, we discuss vector spaces, which are mathematically interesting, and the necessary definitions and theorems of subspaces and etc. And we will discuss the concepts of length and orthogonality. Finally, we explain the adjoint operator on inner product space.


 PROPERTIES OF SUBRINGS AND IDEALS

Abstract

              In this thesis we express rings and some special classes of rings. Then we also express the pigeonhole principle, subrings and some examples. Finally we discuss haracteristic of a ring and ideals.


APPLICATINS OF GRAPHS AND DIGRAPHS

Abstract

              In this thesis, we present some basic definitions and notations for undirected and directed graphs and give some examples. Next we state theorems and representation of graphs and diagraphs, and finally, we study the shortest path problems and their related examples.


OPTIMAL SOLUTIONS FOR BALANCED TRANSPORTATION MODEL

Abstract

              In this thesis, we present formulation of linear programming problem and one example. Next, we state formulation of transportation problem as a linear programming model and solution of a transportation problem by solving (i) The Northwest corner rule (ii) Row minima and column minima (least-cost) method (iii) Vogel’s approximation Method and finally, we study finding the optimal solution using MODI method.


 COMPLETE MEIRIC SPACES AND CONTRACTION MAPPING HEOREM

Abstract

               Fixed points of the contraction mappings defined on a metric space are studied. The contraction mappings defined on complete metric space are considered. Then the contraction mapping theorem or Banach fixed point theorem, it states conditions sufficient for the existence and uniqueness of a fixed point, is discussed. Moreover, two important fields of application of the theorem, namely, ordinary differential equations, integral equations are considered.


 REPRESENTATION OF HERMITIAN MATRICES BY ORTHOGONAL PROJECTORS

Abstract

               Firstly, we consider the eigenvalues and eigenvectors of a matrix, especially a number of results on some special matrices. Secondly, we also express some results concerning eigenvalues and eigenvectors on similar matrices. Lastly, we obtain the results that every square matrix is unitarily similar to an upper triangular matrix and its consequences.


COMPACTNESS PROPERTIES IN A HAUSDORFF SPACE

Abstract

               In this thesis is concerned with compactness properties in a Hausdorff space. Some proposition of separation properties and compactness properties in a topological space are discussed. In addition, relations between compactness properties and separation properties in a Hausdorff space are mentioned.


MOTION OF A SPHERE IN AN INCOMPRESSIBLE FLUID

Abstract

               This thesis includes the basic concepts of fluid motion. And, the source, sink, doublet and uniform stream in three-dimension are presented. We study the motion of a sphere in an incompressible fluid. Moreover, impulsive motion and concentric sphere are also mentioned with some examples.


ASPECTS OF APPROXIMATION THEORY

Abstract

             Important concept and properties in normed space and Hilbert space are presented. The existence and uniqueness of best approximation are also discussed in this thesis. It is proved that if a normed space is strictly convex, we have uniqueness of best approximation. And it is also discussed for Hilbert space this holds. Moreover, it is explained that for general normed space one may need additional conditions to guarantee uniqueness of best approximations, for instance a Haar condition in


MAXIMAL IDEALS AND EUCLIDEAN RINGS

Abstract

               First, we express rings and fields. Second, we also discuss idels, quotient rings and homomorphisms. Finally, we obtain the properties of maxiamal ideals and Euclidean rings.


REPRESENTATION OF UNITARY MATRICES BY REFLECTORS

Abstract

               Firstly, we show that a matrix is unitary matrix if and only if the columns or (rows) of its form a orthonormal set. We also show that if a matrix is unitary then it is diagonalizable. Secondly, we obtain the fact that every matrix is the product of unitary matrix and upper triangular. The main fact is that every square unitary or orthogonal matrix is the product of elementary reflectors.


SOLVING THE BALANCED TRANSPORTATION PROBLEMS

Abstract

               In this thesis, we consider the transportation problem. Method of finding initial basic feasible solution and optimality solution for transportation problem are discussed. In addition, some examples of the balanced transportation problem are also mentioned.


EXTENSION OF BOUNDED LINEAR FUNCTIONALS ON NORMED SPACES

Abstract

               In this thesis we firstly express some results of bounded linear operators and bounded linear functional on a normed space. We also express two results concerning extension of linear functionals on a vector space namely, Hahn-Banach Theorem on real vector space, Hahn-Banach Theorem on complex vector space. By using these results, we obtain two theorems concening bounded linear functionals on a normed space.


A STUDY ON BASIC FOR FLUID DYNAMICS

Abstract

               In this M. Sc. thesis paper, we study the basic properties of fluid dynamics. Firstly, we are going to discuss the density and pressure at a point, fluid velocity and stream lines. Again we also study the equation of continuity, stream functions for two-dimensional motion and Sources, Sinks and Doublets in two-dimensions.


APPLICATIONS OF CIRCLE THEOREM

Abstract

               In this thesis, two-dimensioned source and sink, doublet and vortex are presented. There is also the study of uniform stream of complex potential included. Moreover, calculation of Blasius and Circle Theorem and relevant examples are also presented.


APPLICATIONS OF MATRIX REPRESENTATION

Abstract

               In this thesis, we present some basic definitions and theorems of linear transformation, isomorphism and etc. Next we state theorem and examples of vector representation. Finally, we explain the important properties of matrix representation.


 INVARIANT SUBSPACES

Abstract

               In this thesis we study the invariant subspaces. Firstly, we are going to discuss vector spaces and eigen values and eigen vectors. Again we also study annihilating polynomials, theorems and some examples.


COMPACTNESS PROPERTIES IN A HAUSDORFF SPACE

Abstract

               In this thesis is concerned with compactness properties in a Hausdorff space. Some proposition of separation properties and compactness properties in a topological space are discussed. In addition, relations between compactness properties and separation properties in a Hausdorff space are mentioned.


VARIOUS TYPE OF EQUATION OF MOTION

Abstract

               In this thesis, some properties of the fluid, equation of motion with relevant examples are discussed. The equation of motion in cylindrical coordinates and spherical polar coordinates are presented. Then impulsive action, equation of motion under impulsive force (vector form) and it examples are mentioned. Moreover, equation of motion under impulsive force (cartesian form) is expressed.


SOME PROPERTIES IN METRIC SPACE AND INNER PRODUCT SPACE

Abstract

               In this thesis, we present some basic definitions and notations for vector space, metric space and inner product space and give some examples. Next we state characterizations of this spaces and finally, we discuss some properties of vector space, metric space and inner product spaces and their related examples.


SOME BASIC CONCEPT FOR GRAPH AND DIGRAPH

Abstract

               In this M.Sc. thesis paper, we introduce come basic definitions and notations for graph and digraph and give some examples. Next we state theorems and examples for connectedness and component of a graph and directed graph, and finally, we study shortest path algorithm and their related examples.


THE NATURE OF THE FLOW IN MOTION

Abstract
               In this M.Sc. thesis paper, two-dimensional motion, stream lines, irrotational motion in two-dimensions and complex potential in two-dimensional, irrotational, incompressible flow are studied, definition of source, sink and doublet and complex potentials for source, sink and doublet are also discussed. Again, velocity and acceleration of a fluid particle and the system of equation of continuity. Finally some suitable worked examples are presented.


IDEALS, HOMOMORPHISMS, AND QUOTIENT RINGS

Abstract

               In this thesis we study concept in group, some concept in ring, properties of ideals and homomorphisms. We study isomorphism and quotient rings.


ORTHONORMAL SET OVER THE VECTOR SPACE

Abstract

               In this thesis, we study orthonormal basis the vector space. Firstly we are going to discuss vector spaces, some concepts of vector space, linear transformation on vector spaces and quotient space. Secondly, we also study inner product space. Finally, we study orthonormal set over the vector space relative to theorem and examples.


STUDY ON EQUATION OF CONSERVATION OF MASS

Abstract

               In this thesis, some properties of the fluid, fluid motion with relevant examples are discussed. The equation of continuity in cartesian coordinates and cylindrical coordinates are presented. Then vortex line, vortex tube and vortex filament are mentioned. Moreover, rotational and irrotational motion is expressed.


VECTOR SPACES AND MODULES

Abstract

               In this thesis we study vector spaces and subspaces, isomorphisms, linear independence, bases and finite-dimensional. We also present dual spaces, inner product spaces and modules.


A STUDY ON SYSTEMS OF LINEAR EQUATIONS

Abstract
               In this thesis, we present some basic definitions and notations for systems of linear equations, pivot operations and more on systems of linear equations and give some examples. Next we discuss the characterizations of systems of linear equations and their related examples.


 PROPERTIES OF POSETS AND LATTICES

Abstract

               In this thesis we discuss partial order relations which would finally lead us to the definition of a lattice. Firstly we discuss various types of relations that can be defined on a set. Next, we discuss uniqueness of greatest lower bounds (least upper bounds) and each partially order set can be represented by helping of a digram. Finally, we discuss properties of partially order sets and lattices.


PROPERTIES OF IDEALS IN LATTICE

Abstract

               In this thesis we discuss characterization of ideals. Firstly, we express the useful basic definitions of partially ordered set and its properties. Next, we are now well-equipped to define a lattice and study its properties. Finally, we discuss ideals, dual ideals, principal ideals, principal dual ideals, prime ideals, dual prime ideals and their properties.


SOME APPLICATIONS OF THE DIMENSION THEOREM TO THE SOLUTION OF THE SYSTEM OF LINEAR EQUATIONS

Abstract

            This thesis is concerned with a study on solutions of linear equations. For this study, some basic definitions and properties related to the vector space are required and so these are firstly discussed. Then the dimensional theorem is studied. Finally, the dimensional theorem is applied to the solution of the system of linear equation.


 THE RELATION BETWEEN MATRICES AND LINEAR MAPS

Abstract

            This thesis is concerned with a study on the relation between matrices and linear maps. For this study, some basic definitions and properties related to the vector space are required and so these are primarily discussed. Linear Mappings and their properties are explained. The linear map associated with a matrix and the matrix associated with a linear map are also studied.


CHARACTERIZATION OF MEASURABLE SETS AND MEASURABLE FUNCTIONS

Abstract

               Several properties, concerning algebra of sets, are presented. Two important properties of Lebesgue measure are also discussed. In this thesis, certain operations performed on measurable functions lead again to measurable functions and consequence of equality  are explained.


STUDY ON EQUATIONS OF MOTION FOR INCOMPRESSIBLE AND INVISCID FLUID IN STEADY MOTION

Abstract

               In this thesis, curvilinear coordinate systems are explained. Basic hydrodynamic equations such as equation of continuity and equation of motion are derived. Finally, we study steady motion for incompressible and inviscid fluid in steady motion with some examples.


STUDY ON SOME EQUATIONS OF STREAMLINES
FOR THE INCOMPRESSIBLE FLUID

Abstract

               In this thesis, basis properties of the fluid motion are first studied. Then basic hydrodynamic equations such as the equations of continuity and equations of motion are derived. The stream lines and Reynold's transport theorem are also discussed. The equations of stream lines for the steady motion of an incompressible fluid are explained with some examples.


THE EQUATIONS OF MOTION FOR A PARTICLE MOVING IN ELLIPTIC ORBITS

Abstract

             In this thesis concerned with the central force motion which is a plane curved motion. The areal velocity is defined and shows that it is the same as the magnitude of angular momentum or moment of momentum for a unit mass which is a constant. Two types of coordinates system, the reciprocal polar coordinates and pedal coordinates are introduced. Particles moving under the inverse square law always described conic orbit is proved. Finally we discussed about the elliptic orbit moving under the inverse square law when a blow is given along tangentially and normally.


VARIOUS FORMS OF FOURIER INTEGRAL THEOREM

Abstract

            In this thesis, we study the Fourier series of the periodic functions. The Fourier series of even and odd functions, half range expansions are discussed. In addition, some examples of the Fourier integral theorem are also explained.


APPLICATIONS TO PARTIAL DIFFERENTIAL EQUATIONS OF ORDER TWO

Abstract

               In this thesis, differential equations, partial differential equations of first order with relevant examples are discussed. And then applications of partial differential equations of order two are mentioned. Moreover, variable separation method and Laplace's Equation and its solution are expressed.


SOME TYPES OF MATCHING

Abstract

               Let  be a graph. A subset M of E is called a matching of G provided no two edges of M are adjacent. We give some conditions for the existence of a matching in a bipartite graph and perfect matching in a simple graph. In the last section, we study on algorithm to find maximum matching in the simple graph.


GRAPH REPRESENTATION AND GRAPH ISOMORPHISM

Abstract

               In this thesis, we study some basic definitions and notations for graphs. We also discuss Euler tour and Hamilton cycle of a graph. We present a necessary condition for isomorphism between two graphs and we determine pairs of graph are isomorphic.


A BRIEF STUDY OF OPERATORS

Abstract

            We discuss the theory of operators on Banach spaces. And we consider the operators in Hilbert space, which has more structure than a normed space and a correspondingly richer operator theory. Because we are interested in the eigenvalue problem, we shall consider only operators which map a Hilbert space into itself. We also express the eigenvalues of a self-adjoint operators and compact operators.


UNBOUNDED LINEAR OPERATORS IN HILBERT SPACE

Abstract

               In this thesis, we state the unbounded linear operators in Hilbert space. Unbounded linear operators occur in many applications, notably in connection with differential equations and in quantum mechanics. Their theory is more complicated then that of bounded operators. Most unbounded linear operators occurring in pratical problems are closed or have closed linear extensions. And then we study the spectral properties of self-adjoint linear operators and unitary operators.


A STUDY ON BRANCH AND BOUND ALGORITHM

Abstract

               In this thesis, we study simplex method to solve the linear programs. Next, we discuss the integer programming problem by using branch and bound algorithm and finally, we present the optimal solution in travelling salesman problem by using this algorithm.


TOPOLOGICAL VECTOR SPACES ON FUNCTIONAL ANALYSIS

Abstract

               In this thesis, we present some basic definitions and notations for topological vector space and give some illustrative examples. Next we state characterizations of this space and finally, we discuss some properties of topological vector spaces on functional analysis and their related examples.


UNBOUNDED LINEAR OPERATORS IN HILBERT SPACE

Abstract

               In this thesis, we state the unbounded linear operators in Hilbert space. Unbounded linear operators occur in many applications, notably in connection with differential equations and in quantum mechanics. Their theory is more complicated then that of bounded operators. Most unbounded linear operators occurring in pratical problems are closed or have closed linear extensions. And then we study the spectral properties of self-adjoint linear operators and unitary operators.


GROUPS OF RIGID MOTIONS OF REGULAR N-GONS

Abstract

             We first present symmetries of the geometric figures, that is, examine the permutations of vertices of them. Next, we also express the some results of cyclic groups, especially, cyclic groups are abelian. The main fact of this thesis is that the group of rigid motions of a regular n-gon () is a subgroup of symmetric group on n letters.


GROUPS OF RIGID MOTIONS ON THE PLANE

Abstract

                Firstly, we present some illustrated example and basic facts on groups. We also discuss groups of rigid motions; especially, groups of reflections, translations and rotations on the plane. The main fact is that an isometry on the plane is a linear transformation and is represented by an element in the group of two by two orthogonal matrices.


NORMS AND INNER PRODUCTS

Abstract

               In this thesis, we study linear transformation, orthonormal basis, dual space, orthogonal complements and linearly independents. We also present norms, inner product spaces and isomorphism.


STUDY ON DUALITY OF LINEAR PROGRAMING

Abstract

               In this thesis, basic properties of primal and dual linear programming problem are described. Based on this method, basic feasible solutions for the optimal solution of maximization or minimization problems are discussed. Some theorems and some examples of the primal and dual linear programming problem are also explained.


GENERALIZED GROUP MULTIPLICATION

Abstract

                We discuss the basic properties of the groups of rigid motions on a geometric figure; especially, examine the some facts on the permutation groups on n letters. The last fact is that the number of ways in which the vertices of a square can be colored red or blue by using a group of rigid motions.


ACYCLIC DIRECTED GRAPH (DIGRAPH)

Abstract

                We introduce basic concepts of directed graph (digraph). Directed paths and directed cycles are discussed. We define a tournament and directed Hamilton path of a digraph D. We study some properties of an important class of directed graphs, namely, the acyclic directed graphs. Some theorems related to maximal acyclic directed graphs are stated and proved.


MODULES OVER A PRINCIPAL IDEAL DOMAIN

Abstract

            In this thesis, we study base ring, submodule, R-module, the rank of a free module, Epimorphisms. We also present principal ideal domain, annihilator, cyclic module and primary module.


TRAVELING THROUGH A GRAPH

Abstract

             In this thesis, we first express some basic definitions, notations and some examples in graph theory. The relations between the degrees of vertices and the number of edges are presented. We consider some properties of connected and disconnected graphs. We study the existence of an Euler trail in a graph is related to the degrees of the vertices. Finally, we discuss sufficient conditions for a graph to be hamiltonian.


NAVIER-STOKES’ EQUATIONS IN TERMS OF CURVILINEAR COORDINATES

Abstract

             In this thesis, we study the Navier-Stokes’ Equation in terms of orthogonal curvilinear coordinates of incompressible viscous fluid motions.


SOME APPLICATIONS OF BLASIUS’ THEOREM

Abstract

              In this thesis, we introduce the basic concepts of fluid motion. Next we discuss inviscid two-dimensional motion. Lastly, we proof Blasius’ theorem and describe some applications.


GROUPS AND RINGS ISOMORPHISMS

Abstract
             In this thesis, we express basic definitions of groups, subgroups, normal subgroups and homomorphisms. Then, we discuss the theorems of ideals and isomorphisms. In addition, isomorphisms on groups and rings are also presented.


NILPOTENT LINEAR TRANSFORMATION

Abstract

               In this thesis, we present some basis definitions and theorems of linear system of equation, linear transformation, basis and etc. Next we start theorems and examples of eigenvalues and eigenvectors of a matrix. Finally, we explain the properties of matrix representation and nilpotent linear transformation.


 FACTORIZATION OF POLYNOMIALS

Abstract

               In this thesis, we discuss factorization of integer, which are mathematically interesting, and definitions and theorems of ring, ideals and etc. And also discuss properties of Euclidean ring. Finally, we explain the definitions and theorems of factorization polynomial.


TWO-DIMENSIONAL SOURCE, SINK, DOUBLET AND ITS IMAGE SYSTEM

Abstract

               In this thesis, firstly we present equation of continuity, equation of motion and streamlines. Secondly we express source, sink and doublet in two dimensions. Finally, we discuss the image systems concerning with them.


STEADY FLOW THROUGH A CURVILINEAR SQUARE

Abstract

               In this thesis, analysis of stress in fluid such as stress vector, stress components in cartesian coordinate system, symmetry in stress vector, principal stress and stress invariants are expressed. Basis equations of a viscous fluid are derived. Steady viscous flow in tube of uniform cross section and the rate of discharge are discussed. Finally, the rate of discharge for the curvilinear square is derived.


FORCES ON A SPHERE IN A VISCOUS FLUID

Abstract
            In this thesis, we introduce the basic concepts of vectors and tensors. The Navier-Stokes equation for the fluid motion and the Reynolds number are derived. Lastly, describe the constitutive equation and we calculate a force exerts on a sphere in the fluid and the couple required to maintain rotation the sphere.


STUDY ON CREEPING FLOW PAST A FIXED SPHERE

Abstract

               In this thesis, we introduce the basic concepts of vectors and tensors. The Navier-Stokes equation for the fluid motion and the Reynolds number are derived. Finally, we calculate axisymmetric flow in spherical coordinates, streamlines and the drag coefficient of creeping flow past a fixed sphere.


MAXIMAL IDEALS AND PRIME IDEALS

Abstract

            Firstly, we discuss about the ring with some definitions and theorems. Then, some definitions and theorems of ideal, field and quotient ring are discussed. Some theorems on ring homomorphisms are also presented. Finally, we take up the question of when a quotient ring of a ring is a field and when it is an integral domain.


SOME SPECTRAL THEORY OF BOUNDED SELF-ADJOINT LINEAR OPERATORS ON HILBERT SPACES

Abstract

               The bounded self-adjoint linear operators on a Hilbert spaces are studied. Which are mathematically interesting and practically important in applications. Next, the spectral properties of bounded self-adjoint linear operators on a complex Hilbert space are also discussed. The spectrum of a bounded self-adjoint linear operator is real and eigenvectors corresponding to different eigenvalues are studied. The concepts of a positive operator are expressed.


LINEAR OPERATORS BETWEEN NORMED SPACES

Abstract

               In this thesis, firstly, the fundamental definitions and examples, as well as the most elementary properties of normed spaces such as the continuity of their vector space operations are presented. The basic properties of bounded linear operators between normed spaces, including properties of normed space isomorphisms are studied. The continuous linear operators between normed spaces are also discussed.


EULERIAN TOUR AND THE POSTMAN PROBLEM FOR UNDIRECTED GRAPHS

Abstract

                 A trail in a graph is an Euler trail if every edge of the graph appears as an edge in the trail exactly once. A closed Euler trail is an Euler tour. A graph is said to be an Euler graph if it has an Euler tour. The postman problem consists of finding a minimum weight tour of a graph  traversing all its edges at least once. We present how to solve the postman problems for any undirected graph.


FINDING MINIMUM SPANNING TREES IN UNDIRECTED GRAPHS

Abstract

            Trees are central to the structural understanding of graphs, and they have a wide range of applications. In this thesis, some basic properties of a trees and rooted trees are given. The two algorithms used to construct minimum spanning trees in undirected graphs are also presented and some examples are discussed.


EDGE COLOURING OF A GRAPH

Abstract

               In this thesis, we first express some basic definitions and some examples in graph theory. The relations between the degrees of vertices and the number of edges are presented. We study the existence of an Euler trail in a graph is related to the degrees of the vertices. Then we discuss sufficient conditions for a graph to be hamiltonian. For simple graph, Vizing’s theorem has shown that  colours are sufficient. We consider the question of existence of 2 edge colouring of a graph in which 2 colours for every vertex in the graph. Finally, we determine whether a given graph is of class one or of class two.


VERTEX COLOURING OF A GRAPH

Abstract

               In this thesis, we first express some basis definitions and some examples in graph theory. The relations between the degrees of vertices and the number of edges are presented. We consider some properties of connected and disconnected graphs. We discuss basic principles for calculating chromatic numbers. Then we study upper bounds and lower bounds for chromatic number of a graph. Finally, we describe graphs that are critical with respect to chromatic number.


STUDYING ON AN EUCLIDEAN RING

Abstract

            In this thesis, basic definitions of groups and theorems are presented. Next, we study the ring theory and some examples. Finally, we discuss about an Euclidean ring to be the ring of Gaussian integers and a Fermat theorem.


LEVEL ASSIGNMENTS OF AN ACYCLIC DIGRAPH

Abstract

               For a subset of a digraph, we define a reachable set  of S. Then we define a basis for. We express definitions of n-basis and transmitter. We prove that every acyclic digraph without isolates has a unique basis consisting of its transmitters. We also prove that every acyclic digraph has a unique 1-basis. We discuss level assignments in an acyclic digraph. Finally, we show that every acyclic digraph has a gradable expansion.


A STUDY ON DIRICHLET PROBLEM INVOLVING LAPLACE EQUATION FOR A CIRCLE

Abstract

               The classifications of second-order equations with two independent variables are studied. The determinations of the general solution for a class of relatively simple equations are illustrated.  Then Fourier series essential for the further study of partial differential equations are discussed. Boundary value problems and maximum principle are also discussed. Moreover, the existence of the solution of the Dirichlet problem for interior and exterior of a circle are studied.


SOME CONTINUOUS FUNCTIONS

Abstract

               In this thesis, we present some basic definitions and notations for some continuous functions and give some illustrative examples. Next we state characterizations of these and finally, we discuss some properties of continuous functions on real numbers, metric spaces and topological space and their related examples.


SOME PROPERTIES OF PROJECTION OPERATORS ON HILBERT SPACES

Abstract

               The inner product and the associated idea of a pair of vectors being perpendicular or orthogonal are presented. The sets of perpendicular vectors can form a basis for an infinite-dimensional space and the geometrical aspects of Hilbert space theory are also discussed. Moreover, the projection operators on a Hilbert space and their basis properties are expressed.


EQUATIONS OF CONTINUITY AND EQUATIONS OF MOTION IN ORTHOGONAL CURVILINEAR COORDINATES

Abstract

            This thesis is mainly concentrated with the equations of continuity and equations of motion in orthogonal curvilinear coordinates. Firstly, the basic concepts of vector algebra, the velocity and acceleration of a particle, the motion of a fluid element, the equation of continuity, Reynold’s Transport Theorem and the equations of motion are discussed. Secondly, the arc length and the volume element, the gradient of , the divergence of  the curl of  and the Laplacian of  in curvilinear coordinates are considered. Finally, the gradient of , the divergence of  the curl of  the Laplacian of  the equations of continuity and the equations of motion in orthogonal curvilinear coordinates are studied.


IDEALS AND SOLVING ITS PROBLEMS

Abstract

               In this thesis, we study ideals and solving its problems. Firstly, we are going to discuss rings and field, ideals, homomorphisms and quotient rings. Again we also study prime ideals, maximal ideals, theorem and some examples.


 POLYNOMIALS AND MATRICES

Abstract

               In this thesis, we study polynomials and matrices on a finite dimensional vector space. Firstly, we are going to discuss vector spaces and eigen values and eigen vectors. Then we also study diagonalizable on finite dimensional vector spaces, theorems and some example.


ANALYSIS OF THE ORDERS OF CYCLIC GROUPS

Abstract

               In this thesis, we present some basic definitions and notations for some continuous functions and give some illustrative examples. Next we state characterizations of this and finally, we discuss some properties of continuous functions on real numbers, metric space and topological space and their related examples.


VARIOUS KIND OF RINGS

Abstract

               In this thesis, we express basic definitions of rings, subrings, commutative rings and Boolean rings. Then, we discuss the properties of ideals, maximal ideals and simple rings. In addition, some examples and properties of the Euclidean rings and principle ideal rings are also presented.


INNER PRODUCT AND ORTHOGONALITY

Abstract

Some examples of Hilbert spaces are presented. We discuss every inner product space is normed space but not all normed spaces are inner product spaces.
            Properties of orthogonal elements in inner product spaces are studied. It is also presented how to obtain an orthonormal sequence if an arbitrary linearly independent sequence is given. Moreover, properties of a total orthonormal set are discussed.


ANALYSIS ON CONGRUENCE CLASSES OF INTEGERS

Abstract

We express a generalization of equality of integers, namely, congruence. We also discuss some properties of congruence classes, namely, ring, integral domain, etc. Finally, we will show that the sets of congruence class Zmn and Zm × Zn are isomorphic when m and n are relatively prime.


ANALYSIS AND APPLICATIONS ON CHINESE REMAINDER THEOREM

Abstract

               Firstly, we express the division algorithm and its applications. Secondly, we also express Euclidean Algorithm and its applications. Finally, we solve the two congruences by using Chinese Remainder Theorem.


DESIGN CIRCUIT BY USING BOOLEAN FUNCTIONS

Abstract

             In this thesis, it is known that the structure of the lattice is closely like to the structure of algebra. Namely, a complement distributive lattice, a Boolean lattice, is a Boolean algebra. Especially, one of major applications of Boolean algebra is that circuit is designed by using Boolean functions.

A STUDY ON QUOTIENT RINGS AND FINITE FIELDS

Abstract

First, we express commutative rings. Second, we also discuss fields, polynomials and homomorphisms. Finally, we obtain the properties of quotient rings and finite fields.


SOME REPRESENTATIONS OF A LINEAR TRANSFORMATION AND DIAGONALIZATION

Abstract

We study the properties of linear transformations and the matrix representations of a linear transformation. Then we present the eigenvalues and eigenvectors of square matrix. Finally, we study a diagonalizable matrix.


FINITE DIFFERENCE SCHEMES AND STABILITY OF THE WAVE EQUATION

Abstract

In this thesis, numerical differentiations of a single variable and two variables are presented. The finite difference method and boundary conditions are illustrated. Explicit and implicit difference schemes of wave equation are discussed. And then stability of the wave equation is studied.


INVISCID TWO-DIMENSIONAL VORTEX MOTION

Abstract

            In this thesis, motion in two dimensions is first studied. Then stream function and complex potential are also discussed. Image system of source, sink and doublet are studied. Inviscid two-dimensional vortex motions are explained with some examples.


FORCES ON A RIGID BOUNDARY IN AN INVISCID INCOMPRESSIBLE FLUID

Abstract

Two-dimensional motion of an incompressible fluid is studied by complex variables method. The complex potential for sources, sinks, doublets and vortices in an irrotational incompressible fluid flow are obtained first. We also present three-dimensional sources, sinks and doublets. And then we study forces on a cylinder in an inviscid fluid by using Blasius’ Theorem. Moreover, we find stream functions and velocity potentials for the flows with spherical boundaries by sphere theorem. Finally the result, often referred as D’Alembert’s paradox for a finite body of arbitrary shape, is established.


THE STRUCTURE K-CONNECTED GRAPH

Abstract

At first, the basic definitions of graph and some examples are expressed. Connected graph, tree, cut edge, cut vertex and some theorems are stated and proved. Finally connectivity and edge-connectivity and solving some theorems are stated and proved.


COMPACTNESS AND SOME FIXED POINT THEOREMS ON NORMED SPACES

Abstract

The classical spaces with basic definitions, examples and theorems are described. Then compact sets and relatively compact sets are proved in normed spaces. Contradiction and fixed point theorems are discussed. Finally sequences of contradictions and fixed point theorems are studied.


STUDY ON ERROR-CORRECTING CODE

Abstract

It is studied that the application of finite group under addition of conjugacy classes over the finite field Z2, namely, binary linear code in coding theory. It will introduce the Hamming distance and Hamming weight and next shows that the distance between two words and the weight of the difference of these words are same. Finally, it is shown that encoded messages are decoded by three ways, namely, parity-check matrix decoding, coset decoding and syndrome decoding.


HIGHER DIMENSIONAL LINEAR SYSTEMS OF DIFFERENTIAL EQUATIONS

Abstract
             
At first, higher dimensional linear algebra and higher order linear differential equations with constant coefficients are studied. Then we state the general solution and the Wronskian with some examples are discussed.  Eigenvalues and eigenvectors in higher dimension are also investigated. Finally, some examples for changing coordinates system are presented.


PHASE PORTRAITS FOR PLANAR AUTONOMOUS SYSTEMS

Abstract

At first, basic background from algebra and second-order differential equations are discussed. Planar linear systems and some examples are also studied. Then various types of eigenvalues are stated. Finally, phase portraits for planar systems with examples are investigated.


INDEPENDENCE NUMBERS AND COVERING NUMBERS OF A GRAPH

Abstract

Vertex-independent set, edge-independent set of a graph G and two types of covering of a graph namely, vertex cover and edge cover are studied. Theorems concerning with independence number, edge-independence number, matching number and edge covering number are expressed. We are also discussed some theorems about the critical graphs.


BLOCK-CUT VERTEX TREE OF A GRAPH

Abstract

In this thesis the basic definitions of a graph, the concepts of cut vertex, cut edge and block of a graph are introduced. Then the definitions of tree, block-cut vertex tree, block graph and cut vertex graph are stated. Also mentioned, some theorems related to block-cut vertex tree and block point tree are proved.


A STUDY ON EXTENDABLE GRAPH

Abstract

At first, basic definitions and notations are expressed. Matchings in bipartite graphs and non-bipartite graph are consider. Then maximum matching, minimum covering and some theorems are expressed.Especially, maximum matching and perfect matching are studied. Finally, theorems on k-extendable graphs are investigated.


MINIMUM SPANNING TREES OF GRAPHS

Abstract

In this thesis, firstly some basic definitions and examples in graph theory are expressed. Then several results and concepts involving trees are presented. The relation between cutsets and spanning trees and the relation between cycles and cotrees are discussed. Finally, for constructing minimum spanning trees, Kruskal’s algorithm and Prim’s algorithm are stated.


STRUCTURE THEOREMS ON PERMUTATION GROUPS

Abstract

We first present the basic properties of groups and subgroups. Then we express the examples and properties of cyclic groups. The main fact of this thesis is the structures of the permutation groups and their properties.


EUCLIDEAN AND FACTORIZATION DOMAINS

Abstract

In this thesis, we study Euclidean and Factorization Domains and solving its problems. Firstly, we are going to discuss rings, fields and quotient rings. Again we also study prime ideals, principal ideals and maximal ideals, theorems and some examples.


LAMINAR STEADY FLOW OF INCOMPRESSIBLE VISCOUS FLUID IN TUBES OF CROSS-SECTION WITH CIRCULAR AND NON-CIRCULAR

Abstract

This thesis is mainly expressed as laminar steady flow of incompressible viscous fluid in tubes of cross-section with circular and non-circular. In the first section, we discussed the methods of describing fluid motion, velocity and acceleration of a fluid particle, motion of a fluid element, equation of continuity, Reynolds’ Transport Theorem and the equations of motion. In the second section, we considered the steady unidirectional flow, two dimensional flow through the straight channel, couette flow and the Hagen-Poiseuille flow. In the last portion, we studied the tube of non-circular cross-section, a uniqueness theorem and tube having uniform elliptic, equilateral triangular, rectangular and cardiod cross-sections.


MODULAR AND DISTRIBUTIVE LATTICES

Abstract

               In this thesis, basic concepts of partially ordered sets (posets) and lattices are introduced. Some ideals of lattices and homomorphisms between two lattices are expressed. Modular equality becomes an inequality of lattices are expressed. Distributive lattices which is related to modular lattices are also explained.


HOMOMORPHISMS AND IMBEDDING OF RINGS

Abstract

Firstly basic definitions, lemmas and some examples of ring and subring are studied. Secondly we describe ideal and quotient rings and we prove homomorphism theorem. Finally some theorems of isomorphism of rings and imbedding of rings are discussed.


SOME PROPERTIES OF BOUNDED LINEAR OPERATORS ON BANACH SPACES

Abstract

The basic definitions and examples of vector spaces, normed spaces and Banach spaces are studied. Then the linear operators especially, with examples and theorems of bounded linear operators on normed spaces are expressed. Finally, we study the properties of bounded linear operators on Banach spaces are discussed.


SOME FIXED POINT THEOREMS IN NORMED LINEAR SPACES

Abstract

Fixed points of the contraction mappings defined on a metric space are studied. The contraction mappings defined on complete metric space are considered. Then the contraction mapping theorem or Banach fixed point theorem, it states conditions sufficient for the existence and uniqueness of a fixed point, is discussed. Moreover, two important fields of application of the theorem, namely, ordinary differential equations, integral equations are considered.


CHARACTERIZATION OF CONVEX SETS AND CONVEX FUNCTIONS ON Rn

Abstract

In this thesis, basic properties of convex sets and convex functions on Rn are studied. We discuss the convexity and lower semi-continuity of functions can be reduced to convexity and closure of their epigraph. Moreover, some algebraic operations that preserve convexity of a function are also discussed.


REPRESENTATION THEORY OF FINITE GROUPS AND BURNSIDE'S THEOREM

Abstract

In this thesis, we study the part of group theory, especially: If  is a group of order  where  is a prime and  is a natural number, then the center of  is not equal to the set of unit element and all -groups are solvable. It is also found that a representation of a group can be decomposed into irreducible representations; especially: If  is a representation of a group , then for all , the character of ,  is a sum of  roots of unity. As a consequence of this, it is given that the number of irreducible representations of is equal to the number of conjugacy classes of . Finally, by using them, Burnside's Theorem is shown.