December 2016 January 2017 |

4:00 pm Tuesday, January 17, 2017 Special Colloquium: Stable diffeomorphism of 4-manifoldsby Mark Powell (Universite du Quebec a Montreal ) in HBH 227- Two smooth, compact, oriented 4-manifolds are said to be stably diffeomorphic if one can perform connect sums of one or both with copies of the complex projective plane until the resulting manifolds are diffeomorphic. I will discuss the classification of 4-dimensional manifolds modulo this and other closely related equivalence relations.
Submitted by kiselev@rice.edu |