Ribbon Homology Cobordisms
Date:
Friday, 10 January, 2020 - 14:00 - 16:00
Venue:
LSB 222
Seminar Type:
Seminar
Speaker Name:
Dr. Mike Chuen-Ming WONG
Affiliation:
Louisiana State University
Abstract:
A cobordism between 3-manifolds is ribbon if it has no 3-handles. Such cobordisms arise naturally from several different topological and geometric contexts. In this talk, we describe a few obstructions to their existence, from Thurston geometries, character varieties, and instanton and Heegaard Floer homologies, and some applications.
Poster: