Extension of topological groupoids and Serre, Hurewicz morphisms

Abstract

In this paper, we introduce the notion of a topological groupoid extension and relate it to the already existing notion of a gerbe over a topological stack. We further study the properties of a gerbe over a Serre, Hurewicz stack.

References in corpus (2)

• On two notions of a Gerbe over a stack
• Atiyah sequences and connections on principal bundles over differentiable stacks