Charles Wells is Professor Emeritus of Mathematics at Case Western Reserve University; his research interest has been in group theory, category theory and its connections with theoretical computer science, in mathematical discourse, and in the problems of teaching and understanding mathematics.

On the categorical wreath product:

- Charles Wells:
*A Krohn-Rhodes theorem for categories*, J. Algebra**64**1 (1980) 37-45 [doi:10.1016/0021-8693(80)90130-1]

Exposition of sheaf toposes:

- Michael Barr, Colin McLarty, Charles Wells,
*Variable set theory*, prepared for*Scientific American*but unpublished (~1985) [pdf, pdf]

On topos theory, monads (“triples”) and algebraic theories via sketches:

- Michael Barr, and Charles Wells,
*Toposes, Triples, and Theories*, Grundlehren der math. Wissenschaften 278 Springer 1983, republished in: Reprints in Theory and Applications of Categories, No. 12 (2005) pp. 1-287 (tac:tr12 in TAC reprints series)

On category theory:

*Category theory for computing science*with Michael Barr (web)

On sketches:

- Charles Wells,
*Sketches: Outline with references*, 1993 (citeseer:10.1.1.217.3531, pdf)

category: people

Last revised on July 2, 2024 at 20:34:57. See the history of this page for a list of all contributions to it.