On a generalization of Mycielski's and Znám's conjectures about coset decomposition of Abelian groups
On Bimorphisms and Quadratic Forms on Groups
On Bimorphisms and Quadratic Forms on Groups. (Short Communications).
On Decomposititons of Discontinuous Groups of the Plane.
On disjoint covering of groups by their cosets
On Equality Of Indices
On equality of indices.
On extensions of homomorphisms.
On factor coverings of groups
On finite groups with some conditions on subsets.
On groups in which idempotent reducts form a chain
On Multihomomorphisms
On multihomomorphisms.
On non-Hopfian groups of fractions
The group of fractions of a semigroup S, if exists, can be written as G = SS−1. If S is abelian, then G must be abelian. We say that a semigroup identity is transferable if being satisfied in S it must be satisfied in G = SS−1. One of problems posed by G.Bergman in 1981 asks whether the group G must satisfy every semigroup identity which is satisfied in S, that is whether every semigroup identity is transferable. The first non-transferable identities were constructed in 2005 by S.V.Ivanov and A.M....
On Normal Fitting Classes.
On some center-like subsets of groups.
On some commutativity theorems for finite rings and finite groups
On some (pseudo) involutions in the Riordan group.
On splitting -systems