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Structure theorems for actions of diffeomorphism groups


February 27, 2020      4:30 pm
Speaker: Kathrynn Mann - Cornell University

The groups of homeomorphisms or diffeomorphisms of a manifold have many striking parallels with finite dimensional Lie groups. In this talk, I'll describe some of these, and explain new work,...
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Some congruences and consequences in number theory and beyond


November 14, 2019      4:00 pm
Speaker: Ellen Eischen - U Oregon

In the mid-1800s, Kummer observed some striking congruences between certain values of the Riemann zeta function, which have important consequences in algebraic number theory, in particular for unique factorization in...
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