
doi: 10.3792/pjaa.68.334
Connections are given between nil extensions of primitive regular semigroups and extensions by them of nil semigroups on the one side, and different classes of \(\pi\)-regular semigroups on the other.
nil semigroups, nil extensions, primitive regular semigroups, \(\pi\)- regular semigroups, Regular semigroups, General structure theory for semigroups
nil semigroups, nil extensions, primitive regular semigroups, \(\pi\)- regular semigroups, Regular semigroups, General structure theory for semigroups
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