Intersection forms and homotopy equivalence

Geometry Topology Student Seminar
Wednesday, October 19, 2016 - 14:00
1 hour (actually 50 minutes)
Skiles 006
Georgia Institute of Technology
We will discuss some facts about intersection forms on closed, oriented 4-manifolds.  We will also sketch the proof that for two closed, oriented, simply connected manifolds, they are homotopy equivalent if and only if they have isomorphic intersection forms.