TY - BOOK AU - Pirzada, S. TI - An introduction to graph theory SN - 9788173717604 U1 - 006.6 PY - 2009/// CY - Hyderabad PB - University Press KW - Isomorphism KW - Graph N1 - Include references and index; 1. Introduction 1.1 Basic Concepts 1.2 Degrees 1.3 Isomorphism 1.4 Types of Graphs 1.5 Graph Properties 1.6 Paths, Cycles and Components 1.7 Operations on Graphs 1.8 Topological Operations 1.9 Distance and Eccentricity 1.10 Exercises 2. Degree Sequences 2.1 Degree Sequences 2.2 Criteria for Degree Sequences 2.3 Degree Set of a Graph 2.4 New Criterion 2.5 Equivalence of Seven Criteria 2.6 Signed Graphs 2.7 Exercises 3. Eulerian and Hamiltonian Graphs 3.1 Euler, Graphs 3.2 Konigsberg Bridge Problem 3.3 Unicursal Graphs 3.4 Arbitrarily Traceable Graphs 3.5 Sub-Eulerian Graphs 3.6 Hamiltonian Graphs 3.7 Pancyclic Graphs 3.8 Exercises 4. Trees 4.1 Basics 4.2 Rooted and Binary Trees 4.3 Number of Labelled Trees 4.4 The Fundamental Cycles 4.5 Generation of Trees 4.6 Helly Property 4.7 Signed Trees 4.8 Exercises 5. Connectivity 5.1 Basic Concepts 5.2 Block-Cut Vertex Tree 5.3 Connectivity Parameters 5.4 Menger's Theorem 5.5 Some Properties of a Bond 5.6 Fundamental Bonds 5.7 Block Graphs and Cut Vertex Graphs 5.8 Exercises 6. Planarity 6.1 Kuratowski's two graphs 6.2 Region 6.3 Euler's Theorem 6.4 Kuratowski's theorem 6.5 Geometric Dual 6.6 Polyhedron 6.7 Decomposition of Some Planar Graphs 6.8 Exercises 7. Colourings 7.1 Vertex Colouring 12 Critical Graphs 7.3 Brooks Theorem 7.4 Edge Colouring 7.5 Region Colouring (Map Coloring) 7.6 Heawood Map-Colouring Theorem 7.7 Uniquely Colourable Graphs 7.8 Hajos Conjecture 7.9 Exercises 8. Matchings and Factors 8.1 Matchings 8.2 Factors 8.3 Antifactor Sets 8.4 The /-factor Theorem 8.5 Degree Factors 8.6 (g, f) and [a, b]-factors 8.7 Exercises 9. Edge Graphs and Eccentricity Sequences 9.1 Edge Graphs 9.2 Edge Graphs and Traversability 9.3 Total Graphs 9.4 Eccentricity Sequences and Sets 9.5 Distance Degree Regular and Distance Regular Graphs 9.6 Isometry 9.7 Exercises 10. Graph Ma^trices 10.1 Incidence Matrix 10.2 Submatrices of A(G) 10.3 Cycle Matrix 10.4 Cut-Set Matrix 10.5 Fundamental Cut Set Matrix 10.6 Relations between A/, Bf and C/ 10.7 Path Matrix 10.8 Adjacency Matrix 10.9 Exercises 11. Digraphs 11.1 Basic Definitions , 11.2 Digraphs Mid Binary Relations . 11.3 Directed Paths and Connectedness 11.4 Buler Digraphs 11.5 Hamiltonian Digraphs 11.6 Trees with Directed Edges 11.7 Matrices A, B and C of Digraphs 11.8 Number of Arborescences 11.9 Tournaments 11.10 Exercises 12. Score Structure in Digraphs 12.1 Score Sequences in Tournaments 12.2 Frequency Sets in Tournaments 12.3 Score Sets in Tournaments 12.4 Lexicographic Enumeration and Tournament Construction 12.5 Simple Score Sequences in Tournaments 12.6 Score Sequences of Self-Converse Tournaments . 12.7 Score Sequences of Bipartite Tournaments 12.8 Uniquely Realisable (simple) Pairs of Score Sequences 12.9 Score Sequences of Oriented Graphs 12.10 Score Sets in Oriented Graphs 12.11 Uniquely Realisable (simple) Score Sequences in Oriented Graphs 12.12 Score Sequences in Oriented Bipartite Graphs 12.13 Score Sequences of Semi Complete Digraphs 12.14 Exercises ER -