Expander Families and Cayley Graphs pdf epub mobi txt 电子书 下载 2024


Expander Families and Cayley Graphs

简体网页||繁体网页
Mike Krebs
OUP USA
2011-11-17
288
GBP 79.00
Hardcover
9780199767113

图书标签: 计算机科学  数学  图论  Graphs  Cayley  组合  Oxford  2011   


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发表于2024-12-25

Expander Families and Cayley Graphs epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2024

Expander Families and Cayley Graphs epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2024

Expander Families and Cayley Graphs pdf epub mobi txt 电子书 下载 2024



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Expander families enjoy a wide range of applications in mathematics and computer science, and their study is a fascinating one in its own right. Expander Families and Cayley Graphs: A Beginner's Guide provides an introduction to the mathematical theory underlying these objects. The central notion in the book is that of expansion, which roughly means the quality of a graph as a communications network. Cayley graphs are certain graphs constructed from groups; they play a prominent role in the study of expander families. The isoperimetric constant, the second largest eigenvalue, the diameter, and the Kazhdan constant are four measures of the expansion quality of a Cayley graph. The book carefully develops these concepts, discussing their relationships to one another and to subgroups and quotients as well as their best-case growth rates. Topics include graph spectra (i.e., eigenvalues); a Cheeger-Buser-type inequality for regular graphs; group quotients and graph coverings; subgroups and Schreier generators; the Alon-Boppana theorem on the second largest eigenvalue of a regular graph; Ramanujan graphs; diameter estimates for Cayley graphs; the zig-zag product and its relation to semidirect products of groups; eigenvalues of Cayley graphs; Paley graphs; and Kazhdan constants. The book was written with undergraduate math majors in mind; indeed, several dozen of them field-tested it. The prerequisites are minimal: one course in linear algebra, and one course in group theory. No background in graph theory or representation theory is assumed; the book develops from scatch the required facts from these fields. The authors include not only overviews and quick capsule summaries of key concepts, but also details of potentially confusing lines of reasoning. The book contains ideas for student research projects (for capstone projects, REUs, etc.), exercises (both easy and hard), and extensive notes with references to the literature.

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Expander Families and Cayley Graphs pdf epub mobi txt 电子书 下载
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