Christoph Wockel's scientific contributions

Publication (1)

Article
In this paper we introduce gerbes as semi-strict principal 2-bundles and show how they are parametrised by non-abelian ÿ Cech cohomology. Moreover, we derive their gauge 2-groups (or gauge stacks) from first principles and show that they can be described by group-valued functors, much like in classical bundle theory. Moreover, we show that these 2-...

Citations

... (Weak) 2-groups, string geometry, and topological modular forms. The majority of the previous literature on 2-group principal bundles concerns strict Lie 2-groups, meaning that the associator in the monoidal groupoid (G, ⊗) is trivial e.g., see [BS07,BS09,Woc11,SW11,NW13a]. Such 2-group principal bundles are closely related to bundles of categories, as we now explain. ...