Event Type:

Geometry-Topology Seminar

Date/Time:

Monday, January 11, 2021 - 12:00 to 12:50

Location:

Zoom. Please contact Christine Escher for a link.

Guest Speaker:

Institution:

University of Oxford

Abstract:

Accelerated in part by applications in mathematical physics from the late 20th century onward, the interaction of Morse and Hodge Theory in smooth geometry has propelled remarkable advances in geometric topology over the past four decades. Progress in this domain has in many cases outpaced parallel investigations in combinatorial topology, where several of the most basic questions regarding spectral analysis of discrete Morse structures remain outstanding. The present talk introduces a discrete Morse-Witten theory for real-linear operators, a direct extension of the Morse-Witten theory for CW complexes pioneered by Forman in the late 1990’s. Time permitting, we will discuss some consequences for spectral analysis of cellular spaces, the surprisingly categorical underpinnings of the Morse-Witten complex, and several future directions. No prior knowledge of Morse-Witten theory will be assumed, smooth or otherwise. This talk will include a brief introduction to the persistent homology software platforms Eirene and ExHACT.

Host: