Braided strict Ann-categories and commutative extensions of rings

Nguyen Tien Quang


A braided E-system is   a version of braided crossed module for rings. In this paper we present applications of the braided Ann-category theory to the problem of classifications  of braided E-systems, of ring extensions of the type of a strong braided E-system, and of extensions of  commutative rings.


braided strict Ann-category; crossed module; E-system; ring extension; ring cohomology

Full Text:


ISSN: 1331-0623 (Print), 1848-8013 (Online)