Lower-modular elements of the lattice of semigroup varieties. III

2010/02/24 by Shaprynskii, V. Yu., Vernikov, B. M.
#08B15 #20M07 #FOS: Mathematics #Group Theory (math.GR)

paper · doi:10.48550/arxiv.1002.4597

Abstract

We completely determine all lower-modular elements of the lattice of all semigroup varieties. As a corollary, we show that a lower-modular element of this lattice is modular.

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