* Limits in double categories, preprint
@ 1997-11-13 19:56 categories
0 siblings, 0 replies; only message in thread
From: categories @ 1997-11-13 19:56 UTC (permalink / raw)
To: categories
Date: Wed, 12 Nov 1997 19:34:32 +0100
From: Marco Grandis <grandis@dima.unige.it>
The following preprint is available:
Limits in double categories
by Marco Grandis and Robert Pare
Abstract. We define the notion of (horizontal) double limit for a double
functor F: I -> A between double categories, and we give a construction
theorem for such limits, from double products, double equalisers and
tabulators (the double limits of vertical arrows). Double limits can
describe important tools; for instance, the Grothendieck construction of a
profunctor is its tabulator, in the "double category" of categories,
functors and profunctors. If A is a 2-category, the previous result
reduces to Street's construction theorem of weighted limits, by ordinary
limits and cotensors 2*X (the tabulator of the vertical identity of the
object X).
Marco Grandis
Dipartimento di Matematica
Universita' di Genova
via Dodecaneso 35
16146 GENOVA, Italy
e-mail: grandis@dima.unige.it
tel: +39.10.353 6805 fax: +39.10.353 6752
home page: http://www.dima.unige.it/STAFF/GRANDIS/
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~1997-11-13 19:56 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
1997-11-13 19:56 Limits in double categories, preprint categories
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).