Wednesday, May 9 at 14 in C123 SPEAKER: Konstantin Izyurov (University of Geneva and Chebyshev Laboratory at St. Petersburg State University) TITLE: "Scaling limits of spin correlations in the critical 2D Ising model". ABSTRACT: We will describe a rigorous proof of existence and conformal invariance of scaling limits of spin correlations in the critical Ising model on simply-connected domains. The proof employs techniques from discrete complex analysis (holomorphicity of Smirnov's fermionic observables) along with some probabilistic arguments. Joint work with D. Chelkak and C. Hongler.