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Colloquia & Seminars

Current Seminars

  1. Working Seminar: Formal Languages and Geometry: The word problem for the fundamental group of a finite-volume hyperbolic three-manifold is not MCF

    Location: MSRI: Baker Board Room
    Speakers: Saul Schleimer (University of Warwick)

    We wish to prove the theorem of the title.  The key topological points are as follows.  Agol, Wise, and company show that a finite-volume hyperbolic three-manifold is virtually fibered. Thurston tells us that, for hyperbolic surface bundles over the circle, the monodromy stretches the fiber group exponentially.  These are the necessary ingredients; we can now repeat Gilman's proof from last week.

    Created on Dec 01, 2016 11:17 AM PST

Upcoming Seminars

  1. Member Seminar: Circular orderings from veering triangulations

    Location: MSRI: Simons Auditorium
    Speakers: Saul Schleimer (University of Warwick)

    This is joint work with Henry Segerman.  Suppose that (M,T) is a cusped hyperbolic three-manifold equipped with a veering triangulation.  We show that there is a unique circular order on the cusps of the universal cover of M, which is compatible with T.  After giving the necessary background and sketching the proof, I will speculate wildly about possible applications.

    Created on Nov 29, 2016 09:50 AM PST

Past Seminars

  1. Seminar Common Lunch

    Created on Aug 25, 2016 01:53 PM PDT
  2. Seminar Expanders

    Created on Nov 21, 2016 10:20 AM PST
  3. Seminar Reading Group

    Created on Nov 16, 2016 10:24 AM PST
There are more then 30 past seminars. Please go to Past seminars to see all past seminars.