Author Archives: templegeom

Stefan Friedl’s talk at the Geometry/Topology seminar (4pm Tuesday, October 16th)

In 2007, Agol showed that any irreducible 3-manifold 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.

Posted in seminar announcement | Tagged | Leave a comment

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 , | Leave a comment

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

Posted in Uncategorized | Tagged , | Leave a comment

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

Posted in seminar announcement, Uncategorized | Tagged | Leave a comment

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

Posted in seminar announcement | Tagged | Leave a comment

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

Posted in PATCH, seminar announcement, Uncategorized | Tagged , | Leave a comment

New York Hyperbolic Geometry/Teichmuller theory conference.

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

Posted in Uncategorized | Leave a comment