O automorfismech definovaných na okruhu endomorfismů homogenního totálně rozložitelného modulu
On a certain functional identity in prime rings. II.
On a certain identitiy satisfied by a derivation and an arbitrary additive mapping. (Summary).
On a certain identity satisfied by a derivation and an arbitrary additive mapping II.
On a certain identity satisfied by a derivation and an arbitrary additive mapping.
On a class of free Galois extensions.
On a class of strongly quasi injective modules
On a conjecture of Vukman.
On a problem of Bertram Yood
In 1964, Bertram Yood posed the following problem: whether the intersection of all closed maximal regular left ideals of a topological ring coincides with the intersection of all closed maximal regular right ideals of this ring. It is proved that these two intersections coincide for advertive and simplicial topological rings and, using this result, it is shown that the topological left radical and the topological right radical for every advertive and simplicial topological algebra coincide.
On a problem of commutativity of automorphisms.
On a subset with nilpotent values in a prime ring with derivation
Let be a prime ring, with no non-zero nil right ideal, a non-zero drivation of , a non-zero two-sided ideal of . If, for any , , there exists such that , then is commutative. As a consequence we extend the result to Lie ideals.
On a theorem of J. Vukman.
On a theorem of P. E. Schupp. (Sur un théorème de P. E. Schupp.)
On abelian separable extensions and Galois sets of rings
On algebraically compact semigroup rings.
On automorphism group of free quadratic extensions over a ring.
On automorphisms of quaternion orders.
On automorphisms of Weyl algebra
On Azumaya algebras with a finite automorphism group.
On Azumaya Galois extensions and skew group rings.