Back to Search
Start Over
On the idempotents of semigroup of partial contractions of a finite chain
- Source :
- Volume: 4, Issue: 3 242-249, Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi
- Publication Year :
- 2021
- Publisher :
- Osmaniye Korkut Ata Universitesi, 2021.
-
Abstract
- Let $[n]=\{1,2,\ldots,n\}$ be a finite chain. Let $\mathcal{P}_{n}$ and $\mathcal{T}_{n}$ be Semigroups of partial and full transformations on $[n]$ respectively. Let $\mathcal{CP}_{n}=\{\alpha\in \mathcal{P}_{n}: |x\alpha-y\alpha|\leq|x-y| \ \ \forall x, y\in \dom~\alpha\}$ and $\mathcal{CT}_{n}=\{\alpha\in \mathcal{T}_{n}: |x\alpha-y\alpha|\leq|x-y| \ \ \forall x, y\in [n]\}$, then $\mathcal{CP}_{n}$ and $\mathcal{CT}_{n}$ are subsemigroups of $\mathcal{P}_{n}$ and $\mathcal{T}_{n}$ respectively. In this paper, we characterize the idempotent elements and computed the number of idempotents of height, $n-1$ and $n-2$ for the semigroups $\mathcal{CP}_{n}$ and $\mathcal{CT}_{n}$ respectively.
Details
- ISSN :
- 26873729
- Volume :
- 4
- Database :
- OpenAIRE
- Journal :
- Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi
- Accession number :
- edsair.doi.dedup.....0ee12e25fa678bea87c774209a507295