From: Stefan Forcey <sforcey@math.vt.edu>
To: categories@mta.ca
Subject: Re: module for a category
Date: Mon, 25 Aug 2003 13:55:41 -0400 (EDT) [thread overview]
Message-ID: <20030825175543Z10615-24564+241@calvin.math.vt.edu> (raw)
What you are looking for may be similar to something I queried Ross Street in regard to earlier this summer.
I'll save him some time by putting here the relevant part of his response.
> I think the one you first
>mention is what we have been calling V-actegories. Benabou looked at
>these rather than (as well as?) V-categories in the early days of
>monoidal categories. Pareigis also made use of them. More recently,
>publications of Paddy McCrudden involve them. There is a close
>connection with V-categories. A V-module V x A --> A in this sense
>for which we have a parametrized adjoint V(x,[a,b]) =~ A(x.a,b)
>makes A a V-category with V-valued hom [a,b].
>
>Conversely, a tensored V-category becomes such a V-module.
I recommend the work of McCrudden, who has developed among other things a
descent theoretic approach to the tensor product of V-actegories.
There is also resource in the work of Harald Lindner.
His paper, Enriched Categories and Enriched Modules, in Cahiers, Vol XXII-2 (1981)
develops morphisms between enriched categories and actegories, which he calls modules.
I'm curious about why it is that I have never seen his work referenced.
Paul B Levy writes:
>
> Hi
>
> Is there a standard reference for the notion of "left module for a
> category"? (or right module, or bimodule)
>
> Is there any reference in the setting of ordinary categories rather than
> (or as well as) enriched categories or bicategories?
>
> Thanks
> Paul
>
>
>
>
>
next reply other threads:[~2003-08-25 17:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-25 17:55 Stefan Forcey [this message]
2003-08-27 14:11 ` RJ Wood
-- strict thread matches above, loose matches on Subject: below --
2003-08-19 14:24 Paul B Levy
2003-08-21 11:51 ` Ronnie Brown
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