Processing math: 100%
homeHome ViewLayout PrintPrinter Friendly   searchSearch LoginAdd Event
Mathematics Calendar

March 02, 2016
Wednesday, March 02
Geometry and Combinatorics
Time: 16:00
Speaker: Sergio Chaves (Western)
Title: "The Borel construction (Part 2)"
Room: TC 342

Abstract: Let X be a topological space with an action of a topological group G. We want to relate to X an algebraic object that reflects both the topology and the action of the group. The first candidate is the cohomology ring H(X/G): however, if the action is not free, the space X/G may have some pathology. The Borel construction allows to replace X by a topological space X which is homotopically equivalent to X and the action of G on X is free.