Reading seminar: Schoenflies conjecture and generalized property R

Spring 2015

Time/Location: Th 1:00-1:50, Carney 309
Description: We will explore some of the topics discussed in this blog post of Danny Calegari based on some talks of Marty Scharlemann: in particular, our goal will be to understand how the smooth 4D Schoenflies conjecture is related to a generalized version of property R (as well as other 3- and 4-dimensional questions). Along the way, we will survey what is known and discuss some classical and modern techniques one might bring to bear on these questions.

Date

Speaker

Title

Jan 29 Peter Feller Overview: Calegari's blog post
Feb 4 Peter Feller continued. Peter also found this talk of Marty's from last year.
Feb 19 Kyle Hayden h-cobordism theorem, from Wild world of 4-manifolds
Feb 24 Katherine Raoux (Brandeis) Generalized property R and the Schoenflies conjecture
March 5 no meeting
March 12 Dongtai He Continued: Generalized property R and the Schoenflies conjecture
March 19 Radu Cebanu Floer homology and the collapsing of the Thurston norm
March 26 no seminar
April 2 Adam Saltz Floer homology and the collapsing of the Thurston norm, II
April 9 Ian Banfield Floer homology and the collapsing of the Thurston norm, III
April 16 Lev Tovstopyat-Nelip Floer homology, polygon degenerations, and long exact sequences



Some references (will be updated/organized as the semester progresses):