Re: [ALGTOP-L] history of ``twisted cohomology" and nonabelian cohomology

Dear Ronnie, I have read with much interest your mail on your experience with nonabelian cohomology. In the sixties with Charles we also had much thought about that subject, and we came to the idea that the whole frame should be generalized. However Charles has only published one paper on the subject, and I think nobody has ever cited it. It is the paper: "Cohomologie à valeurs dans une catégorie dominée" (Collodque Topologie Bruxelles 1964), CBRM 1966, reprinted in "Oeuvres" Vol. III-2, 531-580). It could interest you as a curiosity. Hoping everything is fine with you, Warmest regards Andree [For admin and other information see: http://www.mta.ca/~cat-dist/ ]