Primitive Idempotents of the Group Algebra CSL(3,q).
Primitivity in skew Laurent polynomial rings and related rings.
Principal ideals in skew Polynomial rings
Products of small modules
Module is said to be small if it is not a union of strictly increasing infinite countable chain of submodules. We show that the class of all small modules over self-injective purely infinite ring is closed under direct products whenever there exists no strongly inaccessible cardinal.
Progrès récent dans l'étude des algèbres associatives libres
Projective modules over binary polyhedral groups.
Projectivity and flatness over the colour endomorphism ring of a finitely generated graded comodule.
Projectivity and flatness over the endomorphism ring of a finitely generated comodule.
Projectivity and flatness over the endomorphism ring of a finitely generated module.
Pseudo linear transformations and evaluation in Ore extensions.
Pseudohereditary and pseudocohereditary preradicals
QTAG torsionfree modules
The structure theory of abelian -groups does not depend on the properties of the ring of integers, in general. The substantial portion of this theory is based on the fact that a finitely generated -group is a direct sum of cyclics. Given a hereditary torsion theory on the category -Mod of unitary left -modules we can investigate torsionfree modules having the corresponding property for all torsionfree factor-modules (and a natural requirement concerning extensions of some homomorphisms). This...
Quantization of canonical cones of algebraic curves
We introduce a quantization of the graded algebra of functions on the canonical cone of an algebraic curve , based on the theory of formal pseudodifferential operators. When is a complex curve with Poincaré uniformization, we propose another, equivalent construction, based on the work of Cohen-Manin-Zagier on Rankin-Cohen brackets. We give a presentation of the quantum algebra when is a rational curve, and discuss the problem of constructing algebraically “differential liftings”.
Quantization of the Marsden-Weinstein reduction for extended Dynkin quivers
Quantum sections and Gauge algebras.
Using quantum sections of filtered rings and the associated Rees rings one can lift the scheme structure on Proj of the associated graded ring to the Proj of the Rees ring. The algebras of interest here are positively filtered rings having a non-commutative regular quadratic algebra for the associated graded ring; these are the so-called gauge algebras obtaining their name from special examples appearing in E. Witten's gauge theories. The paper surveys basic definitions and properties but concentrates...
Quelques remarques sur la notion d'extension rationnelle maximale d'un module et sur les anneaux maximaux de fractions au sens d'Utimi
Quotient rings and one-sided primes.
Quotient rings of group rings
Quotients of reflexive modules
Radical of splitting ring extensions.