Zeta functions of graphs: a stroll through the garden

Graph theory meets number theory in this stimulating book. Ihara zeta functions of finite graphs are reciprocals of polynomials, sometimes in several variables. Analogies abound with number-theoretic functions such as Riemann/Dedekind zeta functions. For example, there is a Riemann hypothesis (which...

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Bibliographic Details
Main Author: Terras, Audrey 1942- (Author)
Format: Electronic eBook
Language:English
Published: Cambridge Cambridge University Press 2011
Series:Cambridge studies in advanced mathematics 128
Subjects:
Online Access:DE-12
DE-92
DE-355
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Summary:Graph theory meets number theory in this stimulating book. Ihara zeta functions of finite graphs are reciprocals of polynomials, sometimes in several variables. Analogies abound with number-theoretic functions such as Riemann/Dedekind zeta functions. For example, there is a Riemann hypothesis (which may be false) and prime number theorem for graphs. Explicit constructions of graph coverings use Galois theory to generalize Cayley and Schreier graphs. Then non-isomorphic simple graphs with the same zeta are produced, showing you cannot hear the shape of a graph. The spectra of matrices such as the adjacency and edge adjacency matrices of a graph are essential to the plot of this book, which makes connections with quantum chaos and random matrix theory, plus expander/Ramanujan graphs of interest in computer science. Created for beginning graduate students, the book will also appeal to researchers. Many well-chosen illustrations and exercises, both theoretical and computer-based, are included throughout
Physical Description:1 Online-Ressource (xii, 239 Seiten)
ISBN:9780511760426
DOI:10.1017/CBO9780511760426

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