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19982012
most citedDiscreteness and Homogeneity of the Topological Fundamental Group

21 citations · 82 across the 9 of their papers we have counts for

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Showing 2012Show all

2 papers · 1 filter

math.GN2012★ 2 cited

Topological pullback, covering spaces, and a triad of Quillen

Jack S. Calcut, John D. McCarthy

We study pullback from a topological viewpoint with emphasis on pullback of covering maps. We generalize a triad of Quillen on properties of the pullback functor.

math.AT2012

Topological and algebraic pullback functors

Jack S. Calcut, John D. McCarthy, Jeremy J. Walthers

We give algebraic equivalents for certain desirable properties of pullback functors on categories of coverings and group sets, namely nullity zero, essential injectivity, and essen…