# Mathematical Sciences Research Institute

Home » MSRI Evans Lecture Series: "Exotic smooth 4-manifolds"

# Seminar

MSRI Evans Lecture Series: "Exotic smooth 4-manifolds" April 12, 2010
Parent Program: -- UC Berkeley, 60 Evans Hall
Speaker(s) András Stipsicz
Description No Description
Video
Abstract/Media

4-dimensional manifolds exhibit phenomena which do not happen in any other dimension: there are examples of infinitely many smooth 4-manifolds which are homeomorphic but not diffeomorphic.

The ’exotic’ behaviour of a smooth 4-manifold seems to be very closely related to the genera of 2-dimensional surfaces it contains. We will discuss a method for changing the differentiable structure of the famous K3-surface.