, Volume 21, Issue 1, pp 1-7

Subgroups of free idempotent generated regular semigroups

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In [6] it is shown that the maximal subgroups of the free idempotent generated regular semigroup which is determined by the biordered set of a completely O-simple semigroup are free. In this note we shall extend this result to a wider class of semigroups.

Communicated by D. McAlister