18.217 | Fall 2019 | Graduate

Graph Theory and Additive Combinatorics

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Lecture 12: Pseudorandom Graphs II: Second Eigenvalue

Description: What can be inferred about a graph from its second eigenvalue? Professor Zhao explores the role of spectra in pseudorandom graphs. Some topics discussed are Payley graphs and Gauss sums, quasirandom Cayley graphs, and the Alon–Boppana bound.

Instructor: Yufei Zhao

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Fall 2019

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Graduate

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