23 citations · 60 across the 14 of their papers we have counts for
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math.AT2008★ 4 cited
Algebraic colimit calculations in homotopy theory using fibred and cofibred categories
Ronald Brown, Rafael Sivera
Higher Homotopy van Kampen Theorems allow the computation as colimits of certain homotopical invariants of glued spaces. One corollary is to describe homotopical excision in critic…
math.AT2008★ 8 cited
Exact sequences of fibrations of crossed complexes, homotopy classification of maps, and nonabelian extensions of groups
Ronald Brown
The classifying space of a crossed complex generalises the construction of Eilenberg-Mac Lane spaces. We show how the theory of fibrations of crossed complexes allows the analysis…