Posted in
Speaker:
Daniel Kasprowski
Zugehörigkeit:
University of Southampton
Datum:
Mon, 16/12/2024 - 14:00 - 15:00
Location:
MPIM Lecture Hall
Parent event:
Low-dimensional topology seminar Two closed, smooth 4-manifolds are stably exotic if they are stably homeomorphic but not stably diffeomorphic. Orientable stable exotica do not exist by a result of Gompf, but Kreck showed that nonorientable examples are plentiful. I will give precise conditions for which normal 1-types stable exotica exist. This is joint work with Mark Powell.
I will also discuss the (non)existence of stably exotic fillings for some families of 3-manifolds. This is joint work with Patrick Orson, Mark Powell and Aru Ray.
| © MPI f. Mathematik, Bonn | Impressum & Datenschutz |
English
Deutsch