Category Archives: Uncategorized

Jason Behrstock: Temple geometry seminar (5 pm,Tuesday, Jan 22)

Jason Behrstock of CUNY will be speaking in the Temple Geometry and Topology Seminar. Title: Divergence, thick groups, and morse geodesics Abstract: In a metric space the divergence of a pair of rays is a way to measure how quickly … Continue reading

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PATCH seminar at UPenn

Speakers will be John Pardon and Larry Guth. Abstracts: John Pardon (3:30): Totally disconnected groups (not) acting on three-manifolds. HilbertĀ“s Fifth Problem asks whether every topological group which is a manifold is in fact a (smooth!) Lie group; this was … Continue reading

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Joseph Maher’s talk at the Geometry/Topology seminar (4 pm Tuesday, November 20)

Joseph Maher will be speaking in the Temple Geometry and Topology Seminar. Title: Statistics for Teichmuller geodesics. Abstract: We describe two ways of picking a geodesic “at random” in a space, one coming from the standard Lebesgue measure on the … Continue reading

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Igor Rivin speaking at Penn State MASS Colloquium

Igor will be speaking at the MASS Colloquium on November 29th. Watch this space for more details

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Patricia Cahn’s talk at the Geometry/Topology seminar (October 9th, 4pm)

Title: Algebras counting intersections and self-intersections of curves Abstract: Goldman and Turaev discovered a Lie bialgebra structure on the vector space generated by free homotopy classes of loops on an oriented surface. Goldman’s Lie bracket gives a lower bound on … Continue reading

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PATCH mini-conference, Friday, September 21

We have Thomas Koberda (Yale), Eriko Hironaka (Florida State) and Andy Putman (Rice) speaking on things vaguely related to the mapping class group: 2pm: Speaker Thomas Koberda Title: The complex of curves for a right-angled Artin group Abstract: I will … Continue reading

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New York Hyperbolic Geometry/Teichmuller theory conference.

Igor Rivin and Dave Futer are both speaking at the Hyperbolic Geometry conference at FDR’s house.

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