Cancellable elements of the lattice of semigroup varieties

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Title:	Cancellable elements of the lattice of semigroup varieties
Authors:	Gusev, S. V. Skokov, D.V. Vernikov, B. M .
Keywords:	semigroup variety cancellable element of a lattice modular element of a lattice
Issue Date:	2018
Publisher:	ДЗ "Луганський національний університет імені Тараса Шевченка"
Series/Report no.:	Математичні науки;
Abstract:	We completely determine all commutative semigroup varieties that are cancellable elements of the lattice SEM of all semigroup varieties. In particular, we verify that a commutative semigroup variety is a cancellable element of the lattice SEM if and only if it is a modular element of this lattice.
Description:	Gusev S. V. Cancellable elements of the lattice of semigroup varieties / S.V. Gusev , D.V. Skokov , B. M . Vernikov // Algebra and Discrete Mathematics. - 2018. - Vol. 26. - Number 1. - Рp.34-46
URI:	http://hdl.handle.net/123456789/4540
Appears in Collections:	Algebra and Discrete Mathematics. - № 1 (26). - 2018

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