Subject: categories: Charles Ehresmann

From: "Ronald Brown" <[email-masked]>
Date: Tue, 28 Feb 2006 10:35:45 -0000

This is to advertise my article:

Three themes in the work of Charles Ehresmann:
local-to-global; groupoids; higher dimensions.

available on arXiv:math.DG/0602499

and to appear in the Proceedings of the 7th Conference on the  Geometry and
Topology of Manifolds:  The Mathematical Legacy of Charles Ehresmann,
 Bedlewo 8.05.2005-15.05.2005 (Poland) Banach Centre Publications.

There is a discussion on
 http://www.math.columbia.edu/~woit/wordpress/?p=352

Ronnie Brown
www.bangor.ac.uk/r.brown