Dear Michael, Have you looked at the work on acyclic models for crossed complexes in Section 10.4 of the joint book on Nonabelian Algebraic Topology, available from my web page? www.groupoids.or.uk/nonab-a-t.html Crossed complexes do not form an additive category. I do not know a double complex analogue, as in your book, for these ideas. Best Ronnie ----Original message----

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From : barr@math.mcgill.ca Date : 27/04/2017 - 00:11 (GMTDT) To : categories@mta.ca Subject : categories: Simplicial acyclic models

Is anyone aware of a non-abelian version of acyclic models that compares simplicial objects (or functors) in a non-additive category? Michael [For admin and other information see: http://www.mta.ca/~cat-dist/ ]