Excision en -théorie algébrique
Excision in entire cyclic cohomology
We prove that entire and periodic cyclic cohomology satisfy excision for extensions of bornological algebras with a bounded linear section. That is, for such an extension we obtain a six term exact sequence in cohomology.
Ext classes and embeddings for -algebras of graphs with sinks.
Extended Bloch group and the Cheeger-Chern-Simons class.
Extension categories and their homotopy
Extensions centrales de groupes algébriques simplement connexes et cohomologie galoisienne
Extensions of dimension groups and AF C*-algebras.