Volume 71 | Issue 3 | Year 2025 | Article Id. IJMTT-V71I3P105 | DOI : https://doi.org/10.14445/22315373/IJMTT-V71I3P105
Received | Revised | Accepted | Published |
---|---|---|---|
11 Jan 2025 | 22 Feb 2025 | 12 Mar 2025 | 30 Mar 2025 |
Semigroups are an important class of algebraic structures. One of the most important subclasses of semigroups are groups. There are some subclasses of semigroups that are ″close″ to groups, such as regular semigroups, orthodox semigroups and inverse semigroups. Finding conditions for semigroups that turn them into groups is interesting and important. In this paper, we give our original proofs of some propositions, which show how certain semigroups turn into groups, satisfying some conditions. Among other things, we give a counterexample to show that there is a cancellative and infinite semigroup, which is not a group.
Semigroup, Regular semigroup, Inverse semigroup, Cancellative semigroup, Group.
[1] J.A. Green, “On The Structure of Semigroups,” Annals of Mathematics, vol. 54, no. 1, pp. 163-172, 1951.
[CrossRef] [Google Scholar]
[Publisher Link]
[2] Alfred Hoblitzelle Clifford, and G.B. Preston, The Algebraic Theory of Semigroups: Part 1, American Mathematical Society, pp. 1-224,
1961.
[Google Scholar] [Publisher Link]
[3] T.E. Hall, “On Regular Semigroups whose Idempotents Form A Subsemigroup,” Bulletin of the Australian Mathematical Society, vol. 1,
no. 2, pp. 195-208, 1969.
[CrossRef] [Google Scholar] [Publisher Link]
[4] John Mackintosh Howie, An Introduction to Semigroup Theory, Academic Press, pp. 1-272, 1976.
[Google Scholar] [Publisher Link]
[5] Victor Vladimirovich Wagner, “Generalized Groups,” USSR Academy of Sciences, vol. 84, pp. 1119-1122, 1952.
[Google Scholar]
[Publisher Link]
[6] G.B. Preston, “Inverse Semigroups,” Journal of the London Mathematical Society, vol. S1-29, no. 4, pp. 396-403, 1954.
[CrossRef]
[Google Scholar] [Publisher Link]
Osman Hysa, Orgest Beqiri, "Some Conditions that Turn a Certain Semigroup into a Group," International Journal of Mathematics Trends and Technology (IJMTT), vol. 71, no. 3, pp. 54-56, 2025. Crossref, https://doi.org/10.14445/22315373/IJMTT-V71I3P105