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# Ellen Eischen : L-functions, congruences, and applications

L-functions, certain meromorphic functions that include the Riemann zeta-function, encode important number-theoretic information. The first part of this talk will focus on some striking properties of special values of the Riemann zeta-function and certain other L-functions (namely, congruences modulo powers of a prime number). In the second part of the talk, I will introduce tools that are useful for studying these congruences. These tools have applications not only to number theory, but also to homotopy theory. This will be a colloquium style talk, intended for a broad audience.

**Category**: Presentations**Duration**: 01:14:50**Date**: February 6, 2012 at 11:55 AM-
**Tags:**seminar, Department of Mathematics Seminar

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