2 papers
math.GR2025
Embedding ample semigroups as (2,1,1)-subalgebras of inverse semigroups
Nasir Sohail, Aftab Hussain Shah, Kristo Väljako
The problem of embedding an ample semigroup in an inverse semigroup as a (2, 1, 1)-type subalgebra is known to be undecidable. In this article, we investigate the problem for certa…
math.GR2024
Amalgamating inverse semigroups over ample semigroups
Nasir Sohail
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…