Extension of topological groupoids and Serre, Hurewicz morphisms
نشر في Praphulla Koushik
بتاريخ 2021
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English
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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.