categories - Category Theory list
 help / color / mirror / Atom feed
From: David Roberts <david.roberts@adelaide.edu.au>
To: categories@mta.ca
Subject: Re: biadjoint biequivalences
Date: Wed, 20 Aug 2008 21:39:59 +0930	[thread overview]
Message-ID: <E1KW9MO-0006nD-M0@mailserv.mta.ca> (raw)

Hi all,

Tom Fiore wrote:

> Theorem. 9.17
> Let X and A be strict 2-categories, and G:A -> X a pseudo functor. There
> exists a left biadjoint for G if and only if for every object x of X there
> exists an object r of A and a biuniversal arrow x -> Gr from x to G.

Of course this begs the obvious question, how hard is this to generalise to
bicategories?

I'm surprised no-one has mentioned Gurksi's thesis, which I just came across.
Appendix A has details of adjunctions in bicategories, and biadjunctions in
tricategories, citing Verity's thesis in the case of Gray-categories.

Best,

David




                 reply	other threads:[~2008-08-20 12:09 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=E1KW9MO-0006nD-M0@mailserv.mta.ca \
    --to=david.roberts@adelaide.edu.au \
    --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).