M A T H E M A T I C S   S E M I N A R S   2014


Friday, 5 December, at 16.30 hrs.

Ben Mares (SISSA)

Title: An introduction to cohomology

Abstract:  Although at first the standard definitions of cohomology may seem very strange, I will show how cochain complexes and cohomology arise naturally from the seemingly-trivial study of locally constant functions on smooth manifolds.  As applications, we will see that a manifold cannot retract to its boundary, and that there is no orientation-reversing diffeomorphism of CP².

http://abstrusegoose.com/253

Venue:  Budinich Lecture Hall(ICTP Leonardo da Vinci Building, first floor)