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20012004
most citedThe fundamental groupoid of the quotient of a Hausdorff space by a discontinuous action of a discrete group is the orbit groupoid of the induced action

10 citations · 11 across the 3 of their papers we have counts for

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math.AT2001

Computing Homotopy Types Using Crossed N-Cubes of Groups

Ronald Brown

The aim of this paper is to explain how, through the work of a number of people, some algebraic structures related to groupoids have yielded algebraic descriptions of homotopy n-ty…