Quasi-Hereditary Orders.
Quasimodules generated by three elements
Quasi-projective modules and the finite exchange property.
Quasi-radicals and Radicals in Categories
Quasiregular rings
Quasitilted algebras have preprojective components
We show that a quasitilted algebra has a preprojective component. This is proved by giving an algorithmic criterion for the existence of preprojective components.
Quasi-tilted algebras of canonical type
Quasitriangular Hom-Hopf algebras
A twisted generalization of quasitriangular Hopf algebras called quasitriangular Hom-Hopf algebras is introduced. We characterize these algebras in terms of certain morphisms. We also give their equivalent description via a braided monoidal category . Finally, we study the twisting structure of quasitriangular Hom-Hopf algebras by conjugation with Hom-2-cocycles.
Quasitriangular Hopf group algebras and braided monoidal categories
Let be a group, and be a semi-Hopf -algebra. We first show that the category of left -modules over is a monoidal category with a suitably defined tensor product and each element in induces a strict monoidal functor from to itself. Then we introduce the concept of quasitriangular semi-Hopf -algebra, and show that a semi-Hopf -algebra is quasitriangular if and only if the category is a braided monoidal category and is a strict braided monoidal functor for any . Finally,...
Quasitrivial semimodules. I.
Quasitrivial semimodules. II.
Quasitrivial semimodules. III.
Quasitrivial semimodules. IV.
Almost quasitrivial and critical semimodules are studied.
Quasitrivial semimodules. V.
Critical semimodules over congruence-simple semirings are studied.
Quasitrivial semimodules. VI.
The paper continues the investigation of quasitrivial semimodules and related problems. In particular, endomorphisms of semilattices are investigated.
Quasitrivial semimodules. VII.
The paper continues the investigation of quasitrivial semimodules and related problems. In particular, strong endomorphisms of semilattices are studied.
Quelques applications de la localisation
Quelques applications de la notion de localisation
Quelques applications géométriques des algèbres de Jordan
Quelques propriétés des anneaux dont un sous-demi-groupe multiplicatif est un -demi-groupe