Guest lectures and seminars - Page 177

Salvador Ortiz-Latorre, EMMOS/CMA, holder et seminar med tittelen: A second order approximation of the continuous time filtering problem

Yoshiko Ogata, University of Tokyo, will give a talk with title: Approximating macroscopic observables in quantum spin systems with commuting matrices

Abstract: Macroscopic observables in a quantum spin system are spatial means of local observables in a UHF algebra. One of their properties is that they commute asymptotically as the system size goes to infinity. It is not true that any given set of asymptotically commuting matrices can be approximated by commuting ones in the norm topology. The main statement of this talk is that this is true for macroscopic observables.  

Bin Yu (Departments of Statistics and Electrical Engineering & Computer Science, UC Berkeley) will talk about

Spectral clustering and high-dim stochastic block model for undirected and directed graphs  

Jyotishman Bhowmick, UiO, will give a talk with title: Deformation of operator algebras by Borel cocycles

Abstract:Given a coaction of a locally compact group on a C^* algebra and fixing a cocycle on G, we discuss a method to deform A into another C^* algebra, thus generalizing  the works of Kasprzak, Yamashita and Rieffel. This is a joint work with S. Neshveyev and A.S. Sangha.