Weak Pullbacks of Topological Groupoids

作者: Aviv Censor , Daniele Grandini

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摘要: We introduce the category HG, whose objects are topological groupoids endowed with compatible measure theoretic data: a Haar system and on unit space. then define study notion of weak-pullback in groupoids, subsequently HG. The HG is setting for groupoidification, which we present separate papers, weak pullback key ingredient.

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