16 citations · 73 across the 20 of their papers we have counts for
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math.CT2015
Beck-Chevalley condition and Goursat categories
Marino Gran, Diana Rodelo
We characterise regular Goursat categories through a specific stability property of regular epimorphisms with respect to pullbacks. Under the assumption of the existence of some pu…
math.CT2015★ 16 cited
Higher central extensions and cohomology
Diana Rodelo, Tim Van der Linden
We establish a Galois-theoretic interpretation of cohomology in semi-abelian categories: cohomology with trivial coefficients classifies central extensions, also in arbitrarily hig…