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 Hopf formulae for homology is explained.
"Some Aspects of Semi-Abelian Homology and Protoadditive Functors." J. Gen. Lie Theory Appl. 9 (2) 1 - 3, 2015. https://doi.org/10.4172/1736-4337.1000238