Topology Seminar: Ben Williams

  • Date: 03/23/2016
  • Time: 15:15
Ben Williams, UBC

University of British Columbia


The EHP sequence in A¹ algebraic topology


The classical EHP sequence is a partial answer to the question of how far the unit map of the loop-suspension adjunction fails to be a weak equivalence. It can be used to move information from stable to unstable homotopy theory. I will explain why there is an EHP sequence in A1 algebraic topology, and some implications this has for the unstable A1 homotopy groups of spheres.

Other Information: 

Location: ESB 4133