Preface
Notation
Acknowledgments
Part 1.Expansion in Cayley Graphs
Chapter 1.Expander graphs:Basic theory
1.1.Expander graphs
1.2.Connection with edge expansion
1.3.Random walks on expanders
1.4.Random graphs as expanders
Chapter 2.Expansion in Cayley graphs,and Kazhdan's property (T)
2.1.Kazhdan's property (T)
2.2.Induced representations and property (T)
2.3.The special linear group and property (T)
2.4.A more elementary approach
Chapter 3.Quasirandom groups
3.1.Mixing in quasirandom groups
3.2.An algebraic description of quasirandomness
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