Speaker: Nasir Ganikhodjaev (Institute of Mathematics, Tashkent, Uzbekistan) Topic: Phase Diagrams of Lattice Models with Competing Interactions Abstract. The existence of competing interactions lies at the heart of a variety of original phenomena in magnetic systems, ranging from the spin-glass transitions found in many disordered materials to the modulated phases with an infinite number of commensurate regions, that […]
Seminar 14.05.2024
Speaker: Andrea Ottolini (University of Washington) Topic: Hitting times in random graphs Abstract. I will discuss a general approach to derive nearly-exact formulas for average hitting times in large graphs. As a main example, we will consider the case of the stochastic block model with two communities, though the idea is much more general. Time permitting, I will […]