Peter Redpath Emeritus Professor of Pure Mathematics, McGill
E-mail: barr at math dot mcgill dot ca
Office: Burnside Hall, Room 918
Office Phone: (514) 398-3806
Office FAX: (514) 398-3899
Department of Mathematics and Statistics
805 Sherbrooke St. W
Montreal, QC H3A 2K6
Research Interests I work on category theory, often the kind of
category theory that is applicable in theoretical computer science.
Earlier, I worked on homological algebra, especially triple cohomology
and this ealier work has recently been improved and published in the
Acyclic models. My two other books, both joint with
are Category Theory for Computing Science
(newly revised with all material missing from the second edition,
including solutions to all the exercises, restored) and
Toposes and Theories, the last one available for free download.
I have also been doing considerable work on understanding and applying
Chu categories (and chu categories). More recently, I have been
doing joint work with Walter Burgess and Robert Raphael, Robert Raphael
and Grant Woods, and now John Kennison and Robert Raphael on
of rings of continuous functions induced by subspace inclusions.
Most of the papers I have written (all I have been able to download)
are available by ftp from
I am editor (and TeXnical editor) of the electronic journal Theory and Applications of
an editor of the electronic journal
Homology, Homotopy and Applications,
and an editor of Mathematical Structures in Computer Science.
May 19, 2004