The least separative congruence on a weakly commutative semigroup

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The least separative congruence on a weakly commutative semigroup. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 4, pp. 630-632

References:

[1] B. Pondělíček: On weakly commutative semigroups. Czechoslovak Math. Journal, 25 (1975), 20-23.

[2] M. Petrich: The maximal semilattice decomposition of a semigroup. Math. Zeitschrift, 85 (1964), 68-82. DOI 10.1007/BF01114879 | Zbl 0124.25801

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