Tome 51 (2010) no. 2

Sommaire

Bipullbacks and calculus of fractions
article no. 1, 31 p.
Ideal determined categories
article no. 2, 11 p.
On regular and homological closure operators
article no. 3, 16 p.
A note on double central extensions in exact maltsev categories
article no. 4, 11 p.