26/11/2009, 15:00 — 16:00 — Sala P4.35, Pavilhão de Matemática
Gustavo Granja, Instituto Superior Técnico
Quaternionic Algebra
I will survey Dominic Joyce's theory of quaternionic algebra, which provides the algebraic framework for studying quaternionic holomorphic functions on hyperkahler manifolds, as well as Quillen's description of the theory in terms of equivariant sheaves on the Riemann sphere.
