Brouwer's Fixed point Theorem
From Niserwiki
Abstract of the Talk
The familiar Brouwer fixed point theorem says that any continuous self-map on a compact convex subset X of finite-dimensional Euclidean space E must leave at least one point fixed. This result is easy to state but notoriously complicated to prove. I will give a proof of it for RxR and state some of its generalizations and applications in various fields of mathematics.

