Seminar series
Date
Wed, 07 Feb 2018
Time
16:00 -
17:00
Location
C5
Speaker
Sam Shepherd
Organisation
University of Oxford
CAT(0) spaces are defined as having triangles that are no fatter than Euclidean triangles, so it is no surprise that under special conditions you find pieces of the Euclidean plane appearing in CAT(0) spaces. What is surprising though is how weak these special conditions seem to be. I will present some well known results of this phenomenon, along with detailed sketch proofs.