Derek Krepski

University of Manitoba
Scientific, Seminar
URegina Topology and Geometry Seminar: Derek Krepski
November 19, 2025
University of Regina
Bundle gerbes on a manifold M provide geometric realizations of degree 3 cohomology classes of M. The space of infinitesimal symmetries of a bundle gerbe naturally carries the structure of a Lie 2-algebra, a deformation of the notion of Lie algebra...