Virtual Seminar on
Geometry and Topology
How to join
Zoom Meeting ID 739-035-2844
Password Zero minus the Euler characteristic of a closed oriented surface of genus 4000
Time Wed 4 pm or Thursday 9 am (or so) in KST (Korea Standard Time)
October 23 (W)
October 27, 29, 30 (TThF) 9 am
Michael Landry (Washington University St. Louis)
Lecture 1: The Thurston norm, flows, and the Teichmüller polynomial
This first talk will be mostly expository. We will introduce the Thurston norm and discuss how the norm interacts with certain pseudo-Anosov flows. We will also introduce the Teichmüller polynomial and talk about how it can be used to compute growth rates of closed orbits of pseudo-Anosov flows.
Lecture 2: Veering triangulations, the Thurston norm, and surfaces in 3-manifolds
We will introduce veering triangulations and explain how a given veering triangulation encodes much information about a face of the Thurston norm unit ball.
Lecture 3: A polynomial invariant of veering triangulations
We introduce a polynomial invariant of veering triangulations that can be viewed as a generalization of the Teichmüller polynomial. This is joint work with Yair Minsky and Samuel Taylor.
November 11 (W) 4 pm
Ilya Gekhtman (Technion)
November 25 (W) 10 am (note the time!)
Kathryn Mann (Cornell)
December 17 (Th) 10 am, Zoom 739-035-2844
(= December 16 (W) 8 pm Indiana)
David Fisher (Indiana University)