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Spectra Of Graphs

Author : Andries E. Brouwer
ISBN : 9781461419396
Genre : Mathematics
File Size : 74.28 MB
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This 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.
Category: Mathematics

Spectra Of Graphs

Author : Dragoš M. Cvetković
ISBN : UOM:39015014352333
Genre : Mathematics
File Size : 73.81 MB
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The theory of graph spectra can, in a way, be considered as an attempt to utilize linear algebra including, in particular, the well-developed theory of matrices for the purposes of graph theory and its applications. However, that does not mean that the theory of graph spectra can be reduced to the theory of matrices; on the contrary, it has its own characteristic features and specific ways of reasoning fully justifying it to be treated as a theory in its own right.
Category: Mathematics

Recent Results In The Theory Of Graph Spectra

Author : D.M. Cvetkovic
ISBN : 0080867766
Genre : Mathematics
File Size : 35.42 MB
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The purpose of this volume is to review the results in spectral graph theory which have appeared since 1978. The problem of characterizing graphs with least eigenvalue -2 was one of the original problems of spectral graph theory. The techniques used in the investigation of this problem have continued to be useful in other contexts including forbidden subgraph techniques as well as geometric methods involving root systems. In the meantime, the particular problem giving rise to these methods has been solved almost completely. This is indicated in Chapter 1. The study of various combinatorial objects (including distance regular and distance transitive graphs, association schemes, and block designs) have made use of eigenvalue techniques, usually as a method to show the nonexistence of objects with certain parameters. The basic method is to construct a graph which contains the structure of the combinatorial object and then to use the properties of the eigenvalues of the graph. Methods of this type are given in Chapter 2. Several topics have been included in Chapter 3, including the relationships between the spectrum and automorphism group of a graph, the graph isomorphism and the graph reconstruction problem, spectra of random graphs, and the Shannon capacity problem. Some graph polynomials related to the characteristic polynomial are described in Chapter 4. These include the matching, distance, and permanental polynomials. Applications of the theory of graph spectra to Chemistry and other branches of science are described from a mathematical viewpoint in Chapter 5. The last chapter is devoted to the extension of the theory of graph spectra to infinite graphs.
Category: Mathematics

Surveys In Combinatorics 1991

Author : A. D. Keedwell
ISBN : 0521407664
Genre : Mathematics
File Size : 87.27 MB
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This volume contains the invited papers presented at the British Combinatorial Conference, held at the University of Surrey in July 1991.
Category: Mathematics

Eigenspaces Of Graphs

Author : Dragoš M. Cvetković
ISBN : 0521573521
Genre : Mathematics
File Size : 71.59 MB
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This book describes the spectral theory of finite graphs.
Category: Mathematics

Spectra Of Graphs

Author : Dragoš M. Cvetković
ISBN : OCLC:439161686
Genre :
File Size : 50.29 MB
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Quantum Graphs And Their Applications

Author : Gregory Berkolaiko
ISBN : 9780821837658
Genre : Mathematics
File Size : 54.72 MB
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This volume is a collection of articles dedicated to quantum graphs, a newly emerging interdisciplinary field related to various areas of mathematics and physics. The reader can find a broad overview of the theory of quantum graphs. The articles present methods coming from different areas of mathematics: number theory, combinatorics, mathematical physics, differential equations, spectral theory, global analysis, and theory of fractals. They also address various important applications, such as Anderson localization, electrical networks, quantum chaos, mesoscopic physics, superconductivity, optics, and biological modeling.
Category: Mathematics

Spectra Of Graphs

Author : Dragos M. Cvetkovic
ISBN : 3527296859
Genre : Science
File Size : 69.7 MB
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Category: Science

Topics In Algebraic Graph Theory

Author : Lowell W. Beineke
ISBN : 9781107079458
Genre : Mathematics
File Size : 90.66 MB
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The rapidly expanding area of algebraic graph theory uses two different branches of algebra to explore various aspects of graph theory: linear algebra (for spectral theory) and group theory (for studying graph symmetry). These areas have links with other areas of mathematics, such as logic and harmonic analysis, and are increasingly being used in such areas as computer networks where symmetry is an important feature. Other books cover portions of this material, but this book is unusual in covering both of these aspects and there are no other books with such a wide scope. Peter J. Cameron, internationally recognized for his substantial contributions to the area, served as academic consultant for this volume, and the result is ten expository chapters written by acknowledged international experts in the field. Their well-written contributions have been carefully edited to enhance readability and to standardize the chapter structure, terminology and notation throughout the book. To help the reader, there is an extensive introductory chapter that covers the basic background material in graph theory, linear algebra and group theory. Each chapter concludes with an extensive list of references.
Category: Mathematics