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Combinatorially Factorizable Cryptic Inverse Semigroups

Published online by Cambridge University Press:  20 November 2018

Mario Petrich*
Affiliation:
21420 Bol, Brač, Croatia
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Abstract

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An inverse semigroup $S$ is combinatorially factorizable if $S\,=\,TG$ where $T$ is a combinatorial (i.e., $\mathcal{H}$ is the equality relation) inverse subsemigroup of $S$ and $G$ is a subgroup of $S$. This concept was introduced and studied by Mills, especially in the case when $S$ is cryptic (i.e., $\mathcal{H}$ is a congruence on $S$). Her approach is mainly analytical considering subsemigroups of a cryptic inverse semigroup.

We start with a combinatorial inverse monoid and a factorizable Clifford monoid and from an action of the former on the latter construct the semigroups in the title. As a special case, we consider semigroups that are direct products of a combinatorial inverse monoid and a group.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 2014

References

[1] Mills, J. E., Combinatorially factorizable inverse monoids. Semigroup Forum 59 (1999), 220232. http://dx.doi.org/10.1007/PL00006005 Google Scholar
[2] Petrich, M., Inverse semigroups. Wiley, New York, 1984.Google Scholar
[3] Petrich, M., Orthogroups with an associate subgroup. Acta Math. Hungar. 125 (2009), 115. http://dx.doi.org/10.1007/s10474-009-8151-9 Google Scholar
[4] Sen, M. K., Yang, H. X., and Guo, Y. Q., A note on. relation on an inverse semigroup. J. Pure Math. 14 (1997), 13.Google Scholar