Перегляд Algebra and Discrete Mathematics, 2014, Vol. 17, № 2 за автором "Banakh, T."

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Characterizing semigroups with commutative superextensions

Banakh, T.; Gavrylkiv, V. (Algebra and Discrete Mathematics, 2014)

We characterize semigroups X whose semigroups of filters φ(X), maximal linked systems λ(X), linked upfamilies N₂(X), and upfamilies υ(X) are commutative.
Densities, submeasures and partitions of groups

Banakh, T.; Protasov, I.; Slobodianiuk, S. (Algebra and Discrete Mathematics, 2014)

In 1995 in Kourovka notebook the second author asked the following problem: is it true that for each partition G=A₁ ∪ ⋯ ∪ An of a group G there is a cell Ai of the partition such that G = FAiA⁻¹i for some set F ⊂ G of ...

Результати 1-2 з 2

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