Geometry & Topology

Event Information A Stability Range for 4-Manifolds
16:10 on Monday April 10, 2023
17:00 on Monday April 10, 2023
BA6183, Bahen Center, 40 St. George St.
Ian Hambleton
https://ms.mcmaster.ca/ian/ian.html
McMaster University

We introduce a new stable range invariant for the classification of closed, oriented topological $4$-manifolds (up to $s$-cobordism), after stabilization by connected sum with a uniformly bounded number of copies of $S^2\times S^2$.