Tuesday, March 29, 2022
Time | Items |
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All day |
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4:00pm |
03/29/2022 - 4:15pm The curve graph is a well-studied and useful tool to study 3-manifolds, and mapping class groups of surfaces. The fine curve graph is a recent variant on which the full homeomorphism group of a surface acts in an interesting way. In this talk we discuss some recent results which highlight behaviour not encountered in the "classical" curve graph. In particular, we will discuss the first entries in a dictionary between properties from surface dynamics and geometric properties of the action (and, while doing so, construct homeomorphisms acting parabolically). Location:
Zoom
03/29/2022 - 4:30pm Motivated by the conjectures of Braverman-Kazhdan, Lafforgue, Ngˆo and Sakellaridis, we prove a summation formula for certain spaces of test functions on the zero locus of a quadratic form. The functions are built from the Whittaker coefficients of automorphic representations on $\mathrm{GL}_n$. Location: |