Spectra of GraphsThis book gives an elementary treatment of the basic material about graph spectra, both for ordinary, and Laplace and Seidel spectra. The text progresses systematically, by covering standard topics before presenting some new material on trees, strongly regular graphs, two-graphs, association schemes, p-ranks of configurations and similar topics. Exercises at the end of each chapter provide practice and vary from easy yet interesting applications of the treated theory, to little excursions into related topics. Tables, references at the end of the book, an author and subject index enrich the text.
Spectra of Graphs is written for researchers, teachers and graduate students interested in graph spectra. The reader is assumed to be familiar with basic linear algebra and eigenvalues, although some more advanced topics in linear algebra, like the Perron-Frobenius theorem and eigenvalue interlacing are included. |
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Contents
1 | |
Chapter 2 Linear Algebra | 21 |
Chapter 3 Eigenvalues and Eigenvectors of Graphs | 33 |
Chapter 4 The SecondLargest Eigenvalue | 67 |
Chapter 5 Trees | 83 |
Chapter 6 Groups and Graphs | 93 |
Chapter 7 Topology | 101 |
Chapter 8 Euclidean Representations | 105 |
Chapter 11 Association Schemes | 165 |
Chapter 12 DistanceRegular Graphs | 177 |
Chapter 13 pranks | 187 |
Chapter 14 Spectral Characterizations | 199 |
Chapter 15 Graphs with Few Eigenvalues | 221 |
References | 229 |
243 | |
247 | |