skip to main content

Mathematics Colloquium

Friday, December 2, 2022
4:00pm to 5:00pm
Add to Cal
Linde Hall 310
Exotic phenomena in 4-dimensional topology
Lisa Piccirillo, Department of Mathematics, MIT,

In favorable circumstances, topological 4-manifolds can be classified. In contrast, smooth 4-manifolds remain poorly understood. Several hard questions (eg the Poincare conjecture) in 4-manifold topology boil down to asking whether there can be distinct smooth (sub)manifolds with the same topological type; such manifolds are called exotic. In this talk I will discuss a few methods to demonstrate exotic phenomena, and comment on how these methods might be adapted towards addressing some of these questions.

For more information, please contact Math Department by phone at 626-395-4335 or by email at [email protected].