Dedicated to the memory of Professor D. I . Zaitseм

ЗМІСТ

D. I . Zaitsev

Albuquerque H., Panaite F.
Some (Hopf) algebraic properties of circulant matrices

Al-Sharo Kh.A., Shemetkova O., Xiaolan Yi
On S-quasinormally embedded subgroups of finite groups

Banakh T., Gavrylkiv V.
Algebra in superextensions of semilattices

Dudchenko I., Plakhotnyk M.
A linear algorithm of checking of the graph connectness

Ghasemi M.
Automorphism groups of tetravalent Cayley graphs on minimal non-abelian groups

Kirichenko V.V., Kurdachenko L.A., Otal J., Subbotin I.Ya.
On the contribution of D.I. Zaitsev to the Theory of Infinite Groups

Kurdachenko L.A., Grin K.O., Turbay N.A.
On hypercentral fyzzy groups

Protasov I.
Partitions of groups into sparse subsets

Raievska I.Yu., Sysak Ya.P.
Finite local nearrings on metacyclic Miller-Moreno p-groups

Santhakumaran A.P., Athisayanathan S.
The upper edge-to-vertex detour number of a graph