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Topology/Geometry Seminar

Lattice point counting and saddle connections

Claire Burrin (Rutgers)

Location:  Hill 705
Date & time: Tuesday, 15 October 2019 at 3:50PM - 4:40PM

Abstract:  Various questions concerning translation surfaces depend on counting saddle connections. For a certain class of translation surfaces, this reduces to the more general, yet more tractable problem of counting points in discrete orbits for the linear action of a lattice of SL(2,R) on the Euclidean plane. This can be done effectively, using either methods from ergodic theory or from number theory.

We will discuss the latter aspect, based on recent joint work with Amos Nevo, René Rühr, and Barak Weiss.

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