ЗМІСТ

Avdeeva T., Ganyushkin O.
Almost all derivative quivers of artinian biserial rings contain chains

Changphas Th., Denecke K.
Green’s relations on the seminearring of full hypersubstitutions of type (n)

Cirulis J.
Multi-algebras from the viewpoint of algebraic logic

Kehayopulu N., Ponizovskii J., Tsingelis M.
A note on maximal ideals in ordered semigroups

Kulikova O.V.
On intersections of normal subgroups in free groups

Kurdachenko L.A., Otal J.
Direct decompositions of artinian modules related to formations of groups

Nekrashevych V.
Hyperbolic spaces from self-similar group actions

Novikov B.V.
Principal quasi-ideals of cohomological dimension 1

Protasov I.V.
Uniform ball structures ?

Savasrtu O.V., Varbanets P.D.
An additive divisor problem in Z[i]

Verbitsky O.
Ramseyan variations on symmetric subsequences