73 citations · 73 across the 1 of their papers we have counts for
2 papers
math.AT2007★ 73 cited
Higher Hopf formulae for homology via Galois Theory
Tomas Everaert, Marino Gran, Tim Van der Linden
We use Janelidze's Categorical Galois Theory to extend Brown and Ellis's higher Hopf formulae for homology of groups to arbitrary semi-abelian monadic categories. Given such a cate…
math.KT2005
On the second cohomology group in semi-abelian categories
Marino Gran, Tim Van der Linden
We develop some new aspects of cohomology in the context of semi-abelian categories: we establish a Hochschild-Serre 5-term exact sequence extending the classical one for groups an…