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 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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Category Archives: seminar announcement
Stefan Friedl’s talk at the Geometry/Topology seminar (4pm Tuesday, October 16th)
In 2007, Agol showed that any irreducible 3manifold such that its fundamental groups is ‘virtually RFRS’ is virtually fibered. I will give a somewhat different proof using complexities of sutured manifolds. This is joint work with Takahiro Kitayama.
Igor Rivin speaking at the Geometry and Dynamics seminar at Penn State
Igor will be speaking in the Geometry and Dynamics Seminar at Penn State on November 28th, on the topic of “counting curves on usually hyperbolic) surfaces.”
Posted in away talks, colloquium, friendly seminars, seminar announcement
Tagged away talks, Igor
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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
Bill Floyd Speaks! (Tuesday, October 2, 4pm)
Speaker: Bill Floyd, Virginia Tech Title: Finite subdivision rules and rational maps Abstract: A finite subdivision rule gives an essentially combinatorial method for recursively subdividing planar complexes. The theory was developed (as part of an approach to Cannon’s conjecture) as … 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
Posted in PATCH, seminar announcement, Uncategorized
Tagged Mapping Class Group, pseudoAnosov
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Seminar on Tuesday, April 17: Jeff Brock
This Tuesday at 5:00, the seminar hosts Jeff Brock of Brown University. Title: Fat, exhausted integer homology spheres Abstract: Since Perelman’s groundbreaking proof of the geometrization conjecture for threemanifolds, the possibility of exploring tighter correspondences between geometric and algebraic invariants … Continue reading
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Seminar on Tuesday, April 3: Scott Wolpert
This Tuesday at 4:30, the seminar hosts Scott Wolpert of the University of Maryland. Title: WeilPetersson Riemannian and symplectic geometry: geodesiclengths, FenchelNielsen twists and Thurston shears Abstract: We discuss the correspondence between WeilPetersson geometry on Teichmuller space and the hyperbolic … Continue reading
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