Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 32 (1991) no. 3

Sommaire

What is a double central extension ? (the question was asked by Ronald Brown)

Janelidze, George

p. 191-201

The connection between the fundamental groupoid and a unification algorithm for syntactil algebras (extended abstract)

Latch, Dana May

p. 203-242

On Priestley duals of products

Koubek, V. ; Sichler, J.

p. 243-256

Strong regular and dense generators

Börger, Reinhard ; Tholen, Walter

p. 257-276