Fall 2016

October 11, 2016
Ian Frankel
October 18, 2016
Lvzhou Chen: SCL in Free Products
The problem of computing scl in free product is to find the most
efficient surface mapping into a wedge of spaces subject to a restriction
on the boundary map. The difficulty is that the space of surface mappings
is huge. I will present an idea of Danny Calegari to decompose the surface
and use a FINITE dimensional polyhedral cone to encode a small amount of
the information to compute scl. Similar ideas appear in geometry/topology
quite often. I will explain how to get rationality and spectral gap (if
time permits) from this.
October 25, 2016
Nick Salter
November 1, 2016
Chen Lei
November 8, 2016
Nir Gadish
November 15, 2016
Kevin Casto
November 22, 2016
Ben O’Connor
December 1, 2016
Weiyan Chen