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Event

Special Event
Andrejewski Lecture: Discrete Geometric Analysis
Prof. Dr. Toshikazu Sunada (Meiji University, Tokyo)
11 Nov 2008 – 13 Nov 2008

Program

Talk
Zeta functions for finitely generated groups
Prof. Dr. Toshikazu Sunada (Meiji University/ Tokyo, Japan)
13 Nov 2008, 16:30

This talk discusses spectral properties of ``non-commutative" crystal lattices. After giving a quick survey of twisted Laplacians, we shall take a look at spectral aspects of Cayley graphs associated with finitely generated groups. The notions of cogrowth, zeta functions, and Ramanujan graphs are handled.

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Activities 2008