Title: Bundle stability on almost submetries in Alexandrov geometry

Speaker: 胥世成(Nanjing University)

Time: Mar 24, 2011, 2:00-4:00 pm

Venue: Room 1328 at BICMR, Resource Plaza, Peking University

Abstract: We will first give a brief introduction on Alexandrov spaces with curvature bounded below, including the local geometric structures, the working tools, and the convergence and collapsing problems in Alexandrov geometry. Then we will talk about a fiber bundle stability result that generalizes early works on Riemannian submersions and partly generalizes Perelman's stability theorem.