From: Ondrej Rypacek <ondrej.rypacek@gmail.com>
To: Categories List <categories@mta.ca>
Subject: Alternative closed structure on Cat
Date: Wed, 4 Jul 2012 15:10:37 +0100 [thread overview]
Message-ID: <E1Smln4-0000gq-2R@mlist.mta.ca> (raw)
Dear All
Is there a name for and what is known about the tensor product of ordinary categories which looks like the underlying 1-category of Gray's (Gray) tensor product?
Explicitly, roughly:
- objects of C \otimes D are pairs (c,d) , c object of C , d an object of D
- arrows alternating lists of arrows from C and D, i.e. they are generated by
(f,d) : (c,d) -> (c',d) for f : c -> c',
(c,g) : (c,d) -> (c,d') for g : d -> d'
and modulo the equations: (f',d) . (f, d) = (f'f, d), (c,g') . (c,g) = (c,g'g), and identities, left and right unit laws and associativity in each component separately.
And is the category of categories with respect to this tensor closed ?
Thank you!
Ondrej
[For admin and other information see: http://www.mta.ca/~cat-dist/ ]
next reply other threads:[~2012-07-04 14:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-04 14:10 Ondrej Rypacek [this message]
2012-07-05 13:38 ` Peter Selinger
2012-07-05 22:12 ` Ross Street
2012-07-05 23:42 ` Mark Weber
[not found] ` <EE7CBC13-DC4D-4ADD-ABB7-AA4E2D8E71B8@gmail.com>
2012-07-06 9:13 ` Ondrej Rypacek
2012-07-06 13:03 ` Omar Antolín Camarena
[not found] ` <1341579630.38166.YahooMailNeo@web110616.mail.gq1.yahoo.com>
2012-07-06 14:55 ` Ondrej Rypacek
2012-07-07 5:13 ` Vaughan Pratt
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