From: Donovan Van Osdol <dv@fermat.unh.edu>
To: Michael Barr <barr@math.mcgill.ca>
Cc: categories@mta.ca
Subject: Re: Derived cotriples
Date: Tue, 22 May 2012 18:35:25 -0400 [thread overview]
Message-ID: <E1SXO4J-0008Ju-2A@mlist.mta.ca> (raw)
In-Reply-To: <E1SWrfE-0006bv-Tb@mlist.mta.ca>
In my 1969 Ph.D. thesis I showed that, given a "good category for
sheaf theory" and a topological space, the associated sheaf functor
arises as the dual of your construction. Basically, I needed the
"goodness" hypothesis so that the equalizer itself would construct the
associated sheaf and thus I would not need to iterate your
construction. The triple used, in this case, was the original
Godement standard construction. Details can be found in Springer
Lecture Notes in Mathematics, volume 236.
Don
[For admin and other information see: http://www.mta.ca/~cat-dist/ ]
prev parent reply other threads:[~2012-05-22 22:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-21 21:23 Michael Barr
2012-05-22 16:34 ` Prof. Peter Johnstone
2012-05-22 21:37 ` Ross Street
2012-05-22 17:41 ` Eduardo J. Dubuc
2012-05-22 22:35 ` Donovan Van Osdol [this message]
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