From: categories <cat-dist@mta.ca>
To: categories <categories@mta.ca>
Subject: question on functors adjoint to their dual
Date: Tue, 4 Feb 1997 13:29:21 -0400 (AST) [thread overview]
Message-ID: <Pine.OSF.3.90.970204132910.8915A-100000@mailserv.mta.ca> (raw)
Date: Tue, 4 Feb 1997 16:44:39 GMT
From: Hayo Thielecke <ht@dcs.ed.ac.uk>
I am interested in the following situation: a contravariant functor
adjoint to its own dual, with the unit and counit being the same
morphism, but _not_ an iso.
The canonical example is the contravariant internal hom on a cartesian
(or just symmetric monoidal) closed category, [(_) -> A] for some
object A.
My question is: is this typical, or are there (interesting) examples
of such adjunctions that do not come from exponentials?
Thanks,
Hayo Thielecke
next reply other threads:[~1997-02-04 17:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-02-04 17:29 categories [this message]
1997-02-05 15:36 categories
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