International Journal of Mathematics and Mathematical Sciences
Volume 23 (2000), Issue 12, Pages 849-854
Right simple subsemigroups and right subgroups of compact convergence semigroups
Central Missouri State University, Warrensburg, Missouri, USA
Received 1 July 1999
Copyright © 2000 Phoebe Ho and Shing S. So. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Clifford and Preston (1961) showed several important characterizations of right groups. It was shown in Roy and So
(1998) that, among topological semigroups, compact right simple or left cancellative semigroups are in fact right groups, and the
closure of a right simple subsemigroup of a compact semigroup is always a right subgroup. In this paper, it is shown that such
results can be generalized in convergence semigroups. In the discussion of maximal right simple subsemigroups and maximal right
subgroups of semigroups, generalization of the results that no two maximal right simple subsemigroups and maximal right subgroups of a convergence semigroup intersect, is also established.