2 papers
math.GR2021
On groups whose subnormal abelian subgroups are normal
Leonid A. Kurdachenko, Javier Otal, Igor Ya. Subbotin
In the current paper we study the groups, whose subnormal abelian subgroups are normal. We obtained a quite detailed description of such hyperabelian groups with a periodic Baer ra…
math.GR2011
On a Generalization of Baer Theorem
L. A. Kurdachenko, J. Otal, I. YA. Subbotin
R. Baer has proved that if the factor-group G/ζ_{n}(G) of a group G by the member ζ_{n}(G) of its upper central series is finite (here n is a positive integer) then the member γ_{n…