Magnifying Elements in Semigroups of Fixed Point Set Transformations Restricted by an Equivalence Relation

Thananya Kaewnoi, Ronnason Chinram, Montakarn Petapirak and Feng Feng

Journal of Mathematics, 2021, vol. 2021, 1-7

Abstract: Let X be a nonempty set and Ï be an equivalence relation on X. For a nonempty subset S of X, we denote the semigroup of transformations restricted by an equivalence relation Ï fixing S pointwise by EFSX,Ï . In this paper, magnifying elements in EFSX,Ï will be investigated. Moreover, we will give the necessary and sufficient conditions for elements in EFSX,Ï to be right or left magnifying elements.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jjmath:4332094

DOI: 10.1155/2021/4332094

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