Subgroups of free idempotent generated regular semigroups
- Cite this article as:
- Nambooripad, K.S.S. & Pastijn, F. Semigroup Forum (1980) 21: 1. doi:10.1007/BF02572533
In  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.