Posted in
Speaker:
Matthias Kreck
Zugehörigkeit:
Univ. Bonn
Datum:
Mit, 03/04/2013 - 16:30 - 18:00
Location:
MPIM Lecture Hall
Parent event:
Lecture Series on 4-manifolds The starting point is Freedman's disc theorem for 4-manifolds with "good" fundamental group. This has two immediate consequences: The topological s-cobordism theorem and topological surgery in dimension 4. The first reduces the topological classification to the classification up to s-cobordism, the second can be used in constructing topological 4-manifolds. I will introduce into my modified surgery theory which allows a simplified approach to both problems. In particular the topological 4-dimensional Poincare conjecture will follow as well as the characterization of manifolds homeomorphic to R
4.© MPI f. Mathematik, Bonn | Impressum & Datenschutz |