categories - Category Theory list
 help / color / mirror / Atom feed
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
 >
 >
 >
 >
 >









             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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20030825175543Z10615-24564+241@calvin.math.vt.edu \
    --to=sforcey@math.vt.edu \
    --cc=categories@mta.ca \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).