Amalgamating inverse semigroups over ample semigroups

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1. Verfasser: Sohail, Nasir
Format: Preprint
Veröffentlicht: 2024
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author Sohail, Nasir
author_facet Sohail, Nasir
contents A semigroup amalgam (S; T1, T2) is known to be non-embeddable if T1 and T2 are both groups (completely regular semigroups, Clifford semigroups) but S is not such. We prove some non-embeddability conditions for semigroup amalgams (S; T1, T2) in which T1 and T2 are inverse semigroups but S is not such. We also introduce some sufficient conditions that make the inverse hulls of the copies of S in T1 and T2 isomorphic; making, in turn, the amalgam (S; T1, T2) weakly embeddable.
format Preprint
id arxiv_https___arxiv_org_abs_2406_05739
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Amalgamating inverse semigroups over ample semigroups
Sohail, Nasir
Group Theory
20M18, 20M15, 20M10
A semigroup amalgam (S; T1, T2) is known to be non-embeddable if T1 and T2 are both groups (completely regular semigroups, Clifford semigroups) but S is not such. We prove some non-embeddability conditions for semigroup amalgams (S; T1, T2) in which T1 and T2 are inverse semigroups but S is not such. We also introduce some sufficient conditions that make the inverse hulls of the copies of S in T1 and T2 isomorphic; making, in turn, the amalgam (S; T1, T2) weakly embeddable.
title Amalgamating inverse semigroups over ample semigroups
topic Group Theory
20M18, 20M15, 20M10
url https://arxiv.org/abs/2406.05739