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1. • CommentRowNumber1.
   • CommentAuthorMike Shulman
   • CommentTimeJan 1st 2010
   • PermaLink
   Author: Mike Shulman
   Format: MarkdownI started writing [[folk model structure on Cat]] with an explicit summary of the construction, and a description of how it can be modified to work if you assume only [[COSHEP]]. I feel like there should also be a "dual" model structure assuming some other weakening of choice, in which all categories are cofibrant and the fibrant objects are the "stacks", but I haven't yet been able to make it come out right.

   I started writing folk model structure on Cat with an explicit summary of the construction, and a description of how it can be modified to work if you assume only COSHEP. I feel like there should also be a "dual" model structure assuming some other weakening of choice, in which all categories are cofibrant and the fibrant objects are the "stacks", but I haven't yet been able to make it come out right.