
Recent Posts
 Jason Behrstock: Temple geometry seminar (5 pm,Tuesday, Jan 22)
 PATCH seminar at UPenn
 Joseph Maher’s talk at the Geometry/Topology seminar (4 pm Tuesday, November 20)
 Stefan Friedl’s talk at the Geometry/Topology seminar (4pm Tuesday, October 16th)
 Igor Rivin speaking at the Geometry and Dynamics seminar at Penn State
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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
PATCH seminar at UPenn
Speakers will be John Pardon and Larry Guth. Abstracts: John Pardon (3:30): Totally disconnected groups (not) acting on threemanifolds. 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
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
Patricia Cahn’s talk at the Geometry/Topology seminar (October 9th, 4pm)
Title: Algebras counting intersections and selfintersections 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
PATCH miniconference, 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 rightangled Artin group Abstract: I will … Continue reading
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Tagged Mapping Class Group, pseudoAnosov
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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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