3 Ergebnisse.

Normalizing extensions I.- Normalizing extensions II.- Commutant des Modules de Longueur Finie sur Certaines Alg¿es Filtr¿.- Maximal orders applied to enveloping algebras.- Fxtensions of valuations on skew fields.- Extensions of simple by simple unit-regular rings.- Invertible 2¿ matrices over skew polynomial rings.- Hereditary P. I. algebras.- Grade et Th¿¿ d¿intersection en alg¿e Non commutative.- Th¿¿ de Hopkins pour les Cat¿ries de Grothen...

Filtered rings and modules.- Topics in graded ring theory.- Local conditions for Noetherian graded rings.

Symmetric localization and sheaves.- Generalities on localization.- Symmetric kernel functors.- Sheaves.- Primes in algebras over fields.- Application: The symmetric part of the brauer group.