Number Theory

Title: Growth of torsion in the cohomology of arithmetic groups
Speaker: Michael Lipnowski
Speaker Info: Duke
Brief Description:
Special Note:

We explain how to use spectral methods, specifically (twisted) analytic torsion, to study torsion in the cohomology of arithmetic groups. We describe a result, joint with Bergeron, proving growth of twisted analytic torsion. This allows one to show that torsion in the cohomology of certain "base-changed" arithmetic groups is abundant.
Date: Monday, October 13, 2014
Time: 4:00PM
Where: Lunt 107
Contact Person: Patrick Allen
Contact email: pballen@math.northwestern.edu
Contact Phone:
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