Book:Chris Godsil/Algebraic Graph Theory
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Chris Godsil and Gordon Royle: Algebraic Graph Theory
Published $\text {2001}$, Springer
- ISBN 0-387-95220-9
Subject Matter
Contents
- Preface
- 1 Graphs
- 1.1 Graphs
- 1.2 Subgraphs
- 1.3 Automorphisms
- 1.4 Homomorphisms
- 1.5 Circulant Graphs
- 1.6 Johnson Graphs
- 1.7 Line Graphs
- 1.8 Planar Graphs
- Exercises
- Notes
- References
- 2 Groups
- 2.1 Permutation Groups
- 2.2 Counting
- 2.3 Asymmetric Graphs
- 2.4 Orbits on Pairs
- 2.5 Primitivity
- 2.6 Primitivity and Connectivity
- Exercises
- Notes
- References
- 3 Transitive Graphs
- 3.1 Vertex-Transitive Graphs
- 3.2 Edge-Transitive Graphs
- 3.3 Edge Connectivity
- 3.4 Vertex Connectivity
- 3.5 Matchings
- 3.6 Hamilton Paths and Cycles
- 3.7 Cayley Graphs
- 3.8 Directed Cayley Graphs with No Hamilton Cycles
- 3.9 Retracts
- 3.10 Transpositions
- Exercises
- Notes
- References
- 4 Arc-Transitive Graphs
- 4.1 Arc-Transitive Graphs
- 4.2 Arc Graphs
- 4.3 Cubic Arc-Transitive Graphs
- 4.4 The Petersen Graph
- 4.5 Distance-Transitive Graphs
- 4.6 The Coxeter Graph
- 4.7 Tutte's 8-Cage
- Exercises
- Notes
- References
- 5 Generalized Polygons and Moore Graphs
- 5.1 Incidence Graphs
- 5.2 Projective Planes
- 5.3 A Family of Projective Planes
- 5.4 Generalized Quadrangles
- 5.5 A Family of Generalized Quadrangles
- 5.6 Generalized Polygons
- 5.7 Two Generalized Hexagons
- 5.8 Moore Graphs
- 5.9 The Hoffman-Singleton Graph
- 5.10 Designs
- Exercises
- Notes
- References
- 6 Homomorphisms
- 6.1 The Basics
- 6.2 Cores
- 6.3 Products
- 6.4 The Map Graph
- 6.5 Counting Homomorphisms
- 6.6 Products and Colourings
- 6.7 Uniquely Colourable Graphs
- 6.8 Foldings and Covers
- 6.9 Cores with No Triangles
- 6.10 The Andrásfai Graphs
- 6.11 Colouring Andrásfai Graphs
- 6.12 A Characterization
- 6.13 Cores of Vertex-Transitive Graphs
- 6.14 Cores of Cubic Vertex-Transitive Graphs
- Exercises
- Notes
- References
- 7 Kneser Graphs
- 7.1 Fractional Colourings and Cliques
- 7.2 Fractional Cliques
- 7.3 Fractional Chromatic Number
- 7.4 Homomorphisms and Fractional Colourings
- 7.5 Duality
- 7.6 Imperfect Graphs
- 7.7 Cyclic Interval Graphs
- 7.8 Erdös-Ko-Rado
- 7.9 Homomorphisms of Kneser Graphs
- 7.10 Induced Homomorphisms
- 7.11 The Chromatic Number of the Kneser Graph
- 7.12 Gale's Theorem
- 7.13 Welzl's Theorem
- 7.14 Strong Products and Colourings
- Exercises
- Notes
- References
- 8 Matrix Theory
- 8.1 The Adjacency Matrix
- 8.2 The Incidence Matrix
- 8.3 The Incidence Matrix of an Oriented Graph
- 8.4 Symmetric Matrices
- 8.5 Eigenvectors
- 8.6 Positive Semidefinite Matrices
- 8.7 Subharmonic Functions
- 8.8 The Perron-Frobenius Theorem
- 8.9 The Rank of a Symmetric Matrix
- 8.10 The Binary Rank of the Adjacency Matrix
- 8.11 The Symplectic Graphs
- 8.12 Spectral Decomposition
- 8.13 Rational Functions
- Exercises
- Notes
- References
- 9 Interlacing
- 9.1 Interlacing
- 9.2 Inside and Outside the Petersen Graph
- 9.3 Equitable Partitions
- 9.4 Eigenvalues of Kneser Graphs
- 9.5 More Interlacing
- 9.6 More Applications
- 9.7 Bipartite Subgraphs
- 9.8 Fullerenes
- 9.9 Stability of Fullerenes
- Exercises
- Notes
- References
- 10 Strongly Regular Graphs
- 10.1 Parameters
- 10.2 Eigenvalues
- 10.3 Some Characterizations
- 10.4 Latin Square Graphs
- 10.5 Small Strongly Regular Graphs
- 10.6 Local Eigenvalues
- 10.7 The Krein Bounds
- 10.8 Generalized Quadrangles
- 10.9 Lines of Size Three
- 10.10 Quasi-Symmetric Designs
- 10.11 The Witt Design on 23 Points
- 10.12 The Symplectic Graphs
- Exercises
- Notes
- References
- 11 Two-Graphs
- 11.1 Equiangular Lines
- 11.2 The Absolute Bound
- 11.3 Tightness
- 11.4 The Relative Bound
- 11.5 Switching
- 11.6 Regular Two-Graphs
- 11.7 Switching and Strongly Regular Graphs
- 11.8 The Two-Graph on 276 Vertices
- Exercises
- Notes
- References
- 12 Line Graphs and Eigenvalues
- 12.1 Generalized Line Graphs
- 12.2 Star-Closed Sets of Lines
- 12.3 Reflections
- 12.4 Indecomposable Star-Closed Sets
- 12.5 A Generating Set
- 12.6 The Classification
- 12.7 Root Systems
- 12.8 Consequences
- 12.9 A Strongly Regular Graph
- Exercises
- Notes
- References
- 13 The Laplacian of a Graph
- 13.1 The Laplacian Matrix
- 13.2 Trees
- 13.3 Representations
- 13.4 Energy and Eigenvalues
- 13.5 Connectivity
- 13.6 Interlacing
- 13.7 Conductance and Objects
- 13.8 How to Draw a Graph
- 13.9 The Generalized Laplacian
- 13.10 Multiplicities
- 13.11 Embeddings
- Exercises
- Notes
- References
- 14 Cuts and Flows
- 14.1 The Cut Space
- 14.2 The Flow Space
- 14.3 Planar Graphs
- 14.4 Bases and Ear Decompositions
- 14.5 Lattices
- 14.6 Duality
- 14.7 Integer Cuts and Flows
- 14.8 Projections and Duals
- 14.9 Chip Firing
- 14.10 Two Bounds
- 14.11 Recurrent States
- 14.12 Critical States
- 14.13 The Critical Group
- 14.14 Voronoi Polyhedra
- 14.15 Bicycles
- 14.16 The Principal Tripartition
- Exercises
- Notes
- References
- 15 The Rank Polynomial
- 15.1 Rank Functions
- 15.2 Matroids
- 15.3 Duality
- 15.4 Restriction and Contraction
- 15.5 Codes
- 15.6 The Deletion-Contraction Algorithm
- 15.7 Bicycles in Binary Codes
- 15.8 Two Graph Polynomials
- 15.9 Rank Polynomial
- 15.10 Evaluations of the Rank Polynomial
- 15.11 The Weight Enumerator of a Code
- 15.12 Colourings and Codes
- 15.13 Signed Matroids
- 15.14 Rotors
- 15.15 Submodular Functions
- Exercises
- Notes
- References
- 16 Knots
- 16.1 Knots and Their Projections
- 16.2 Reidemeister Moves
- 16.3 Signed Plane Graphs
- 16.4 Reidemeister Moves on Graphs
- 16.5 Reidemeister Invariants
- 16.6 The Kauffman Bracket
- 16.7 The Jones Polynomial
- 16.8 Connectivity
- Exercises
- Notes
- References
- 17 Knots and Eulerian Cycles
- 17.1 Eulerian Partitions and Tours
- 17.2 The Medial Graph
- 17.3 Link Components and Bicycles
- 17.4 Gauss Codes
- 17.5 Chords and Circles
- 17.6 Flipping Words
- 17.7 Characterizing Gauss Codes
- 17.8 Bent Tours and Spanning Trees
- 17.9 Bent Partitions and the Rank Polynomial
- 17.10 Maps
- 17.11 Orientable Maps
- 17.12 Seifert Circles
- 17.13 Seifert Circles and Rank
- Exercises
- Notes
- References
- Glossary of Symbols
- Index