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The least separative congruence on a weakly commutative semigroup. (English) Zbl 0508.20034


MSC:

20M10 General structure theory for semigroups
20M14 Commutative semigroups
20M15 Mappings of semigroups
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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. · Zbl 0124.25801 · doi:10.1007/BF01114879
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