73 citations · 386 across the 43 of their papers we have counts for
4 papers · 1 filter
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…
Weighted commutators in semi-abelian categories
Marino Gran, George Janelidze, Aldo Ursini
We introduce new notions of weighted centrality and weighted commutators corresponding to each other in the same way as centrality of congruences and commutators do in the Smith co…
Some aspects of semi-abelian homology and protoadditive functors
Tomas Everaert, Marino Gran
In this note some recent developments in the study of homology in semi-abelian categories are briefly presented. In particular the role of protoadditive functors in the study of Ho…
A torsion theory in the category of cocommutative Hopf algebras
Marino Gran, Gabriel Kadjo, Joost Vercruysse
The purpose of this article is to prove that the category of cocommutative Hopf -algebras, over a field of characteristic zero, is a semi-abelian category. Moreover, we show…