A Note on Coregular Elements in Certain Semigroups of Transformations

Main Article Content

Jitsupa Srisawat
Yanisa Chaiya

Abstract

For a non-empty set X, let P(X)  represent the partial transformation semigroup on X. For a non-empty subset Y of X, define gif.latex?{\small\overline{PT}(X,Y)}  as the semigroup 


gif.latex?\overline{PT}(X,Y)=\{\alpha\in&space;P(X)&space;:(\operatorname{dom}\alpha\cap&space;Y)\alpha\subseteq&space;Y&space;\}.


Then gif.latex?{\small\overline{PT}(X,Y)}  is a generalization of P(X) , encompassing all partial transformations on  that maintain Y as an invariant set. This paper delves into exploring the characterization of coregular elements within gif.latex?{\small\overline{PT}(X,Y)} and applies the results to obtain a similar characterization in relevant semigroups.

Article Details

How to Cite
1.
Srisawat J, Chaiya Y. A Note on Coregular Elements in Certain Semigroups of Transformations. Prog Appl Sci Tech. [Internet]. 2024 Apr. 29 [cited 2024 Jul. 3];14(1):87-90. Available from: https://ph02.tci-thaijo.org/index.php/past/article/view/252662
Section
Mathematics and Applied Statistics

References

Chinram R, Baupradit S, Yaqoob N, Petchkaew P. Left and right magnifying elements in some generalized partial transformation semigroups. Commun. Algebra. 2021;49(7):3176-91.

Clifford AH, Preston GB. The algebraic theory of semigroups. vol. 1. Mathematical surveys. 1961.

Clifford AH, Preston GB. The algebraic theory of semigroups. vol. 2. Mathematical surveys. 1967.

Howie JM. Fundamentals of semigroup theory. Oxford university press. 1995.

Pantarak T, Chaiya Y. Regularity on semigroups of partial transformations with invariant set. Diss. Thammasat University. 2022.

Phongchan S. Rank and regularity of semigroups of transformations with invariant sets. Doctor of philosophy's thesis. Chiang Mai University. 2022.

Pantarak T, Chaiya Y. Regularity and abundance on semigroups of partial transformations with invariant set. Open Mathematics. 2023;21(1):1-12.

Bijev G, Todorov K. Coregular semigroups. Notes on Semigroups VI. Budapest. 1980;1–11.