Expansion in Finite Simple Groups of Lie Type - Terence Tao

Expansion in Finite Simple Groups of Lie Type

(Autor)

Buch | Hardcover
303 Seiten
2015
American Mathematical Society (Verlag)
978-1-4704-2196-0 (ISBN)
154,50 inkl. MwSt
Expander graphs are an important tool in theoretical computer science, geometric group theory, probability, and number theory. Furthermore, the techniques used to rigorously establish the expansion property of a graph draw from such diverse areas of mathematics as representation theory, algebraic geometry, and arithmetic combinatorics. This text focuses on the latter topic in the important case of Cayley graphs on finite groups of Lie type, developing tools such as Kazhdan's property (T), quasirandomness, product estimates, escape from subvarieties, and the Balog-Szemeredi-Gowers lemma. Applications to the affine sieve of Bourgain, Gamburd, and Sarnak are also given. The material is largely self-contained, with additional sections on the general theory of expanders, spectral theory, Lie theory, and the Lang-Weil bound, as well as numerous exercises and other optional material.

Terence Tao was the winner of the 2014 Breakthrough Prize in Mathematics. He is the James and Carol Collins Chair of mathematics at UCLA and the youngest person ever to be promoted to full professor at the age of 24. In 2006 Tao became the youngest ever mathematician to win the Fields Medal. His other honours include the George Polya Prize from the Society for Industrial and Applied Mathematics (2010), the Alan T Waterman Award from the National Science Foundation (2008), the SASTRA Ramanujan Prize (2006), the Clay Research Award from the Clay Mathematical Institute (2003), the Bocher Memorial Prize from the American Mathematical Society (2002) and the Salem Prize (2000).

Expansion in Cayley graphs
Expander graphs: Basic theory
Expansion in Cayley graphs, and Kazhdan's property (T)
Quasirandom groups
The Balog-Szemeredi-Gowers lemma, and the Bourgain-Gamburd expansion machine
Product theorems, pivot arguments, and the Larsen-Pink non-concentration inequality
Non-concentration in subgroups
Sieving and expanders
Related articles
Cayley graphs the algebra of groups
The Lang-Weil bound
The spectral theorem and its converses for unbounded self-adjoint operators
Notes on Lie algebras
Notes on groups of Lie type
Bibliography
Index

Erscheint lt. Verlag 30.6.2015
Reihe/Serie Graduate Studies in Mathematics
Verlagsort Providence
Sprache englisch
Maße 178 x 254 mm
Gewicht 712 g
Themenwelt Mathematik / Informatik Mathematik Algebra
Mathematik / Informatik Mathematik Geometrie / Topologie
Mathematik / Informatik Mathematik Graphentheorie
ISBN-10 1-4704-2196-8 / 1470421968
ISBN-13 978-1-4704-2196-0 / 9781470421960
Zustand Neuware
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