Topology Seminar

Title: Diffeomorphisms of disks
Speaker: Alexander Kupers
Speaker Info: Harvard University
Brief Description:
Special Note:

Disks are among the simplest manifolds but their groups of diffeomorphisms can be very complicated. I will describe the geometric techniques that were used to understand these groups in low dimensions, their relationship to stable homotopy theory and number theory in high dimensions, and recent breakthroughs in understanding their rational homotopy type. This talk will be aimed at a broad audience.
Date: Thursday, January 16, 2020
Time: 4pm
Where: Lunt 105
Contact Person: Ezra Getzler
Contact email: Getzler@math.northwestern.edu
Contact Phone:
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