On Thursday (19.09.2013) at 12:00, Mathijs Wintraecken from Groningen will talk about "Intrinsic simplices on Riemannian manifolds". Abstract: During this talk we will discuss a method to define objects diffeomorphic to the standard simplex on a manifold, without referring to any particular atlas but relying on the Riemannian structure. The talk will take place in Takustr. 9, *SR 046*! All the best, Dror Atariah