Authors :
Muinat Omowumi Lawal; Morufu M. Mogbonju; Adenike O. Adenji
Volume/Issue :
Volume 10 - 2025, Issue 10 - October
Google Scholar :
https://tinyurl.com/3cxu3ym7
Scribd :
https://tinyurl.com/5c239bus
DOI :
https://doi.org/10.38124/ijisrt/25oct002
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Abstract :
Let α be a transformation from Xn → Xn where Xn = {1, 2, 3. . . n}, a finite set, also
let DsTn,DsOn,DsDnandDsCnbe the classes of disparity of elements of full transformation, order preserving, order decreasing,
order preserving and decreasing full transformation semigroup respectively. The disparity of elements in full transformation
semigroup is defined as |W+(α) − W−(α)| = p where p = {1, 2} , W+(α) = max(Im(α)) and W−(α) =min(Im(α)).
This research investigates the order of elements in DsTn and it subsemigroups, DsOn,DsDnandDsCn.The elements in each
semigroup were listed, arranged and tables were formed. The general nth term of the sequences were also derived. This research
work has an important application in computational algebra and theoretical computer science.
Keywords :
Disparity, Order Preserving, Order Decreasing, Order Preserving and Decreasing Full Transformation Semigroup.
References :
- Adeniji A.O (2012), Identity difference trasnformation semigroup. Ph. D thesis, University of Ilorin, Kwara state, Nigeria.
- Adeniji A.O. and Makanjuola S.O (2010), Ideals and elements in identity difference full transformation semigroup, Journal of mathematical science Vol.21, No.3, 323-329.
- Adeniji A. O. and Makanjuola S. O. (2008), On Some Combinatorial results of Collapse in full transformation semigroup, African Journal of Computing and ICT 1(2),61-62.
- Adesola D.A. (2013), “Some semigroup of full contraction mappings of a finite chain”Phd Thesis,Submitted to the Department Mathematics, University of Ilorin, Ilorin, Kwara state Nigeria.
- Akinwunmi S.A and Makanjuola S.O (2019), Partial Contraction Transformation Semigroups. Nigerian Journal of Mathematics and applications vol. B,29,70-77
- Akinwunmi S.A (2021), Combinatorial and Tropical Computational characterizations of classical star-like Finite Transformation Semigroups, Ph.D Thesis submitted to Department of Mathematics, University of Abuja, Nigeria.
- Clifford, A. H. and Preston, G. B. (1961). The Algebraic theory of semigroups. Mathematical Surveys No. 7, Vol. 1. American Mathematical Society. Providence RI.
- Dubreil, P. (1941). Contribution a la theoric des demi-groupes. Memores l’Academic des Sciences de l’ lnstitut de France (2) 63- 52pp
- Ibrahim.A. (2023), Combinatorial Star-Loop Angular Model of 3-Dimensional Nildempotency Star-like Partial one-one transformation semigroup. A Dissertation submitted to Department of Mathematics, University of Abuja.
- Mogbonju M. M (2015), Signed transformation semigroups Ph.D Thesis submitted to Department of Mathematics, University of Ilorin, Nigeria.
- Mogbonju M.M, Ogunleke I.A, Adeniji A.O (2019), polarity in signed symmetric group and signed transformation semigroup, mathematical theory and modeling vol 9. N0. 7.
- Rees, D. (1940). On semigroup. Proceedings of the Cambridge Philosophical Society 36: 387 - 400
- Richard F.Petersen (2008). Transformation semigroups over groups. Ph.D Thesis University of North Carolina State, University of Releigh, North Carolina.
- Stull, R. R. (1944). Representations of finite simple semigroups. Dukc. Mathematical Journal 11: 251 - 265.
- Umar. A. (1992), On the semigroups of order- decreasing finite full transformations. Proceeding of the royal society of Edinburgh, 120A, 129-142
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Let α be a transformation from Xn → Xn where Xn = {1, 2, 3. . . n}, a finite set, also
let DsTn,DsOn,DsDnandDsCnbe the classes of disparity of elements of full transformation, order preserving, order decreasing,
order preserving and decreasing full transformation semigroup respectively. The disparity of elements in full transformation
semigroup is defined as |W+(α) − W−(α)| = p where p = {1, 2} , W+(α) = max(Im(α)) and W−(α) =min(Im(α)).
This research investigates the order of elements in DsTn and it subsemigroups, DsOn,DsDnandDsCn.The elements in each
semigroup were listed, arranged and tables were formed. The general nth term of the sequences were also derived. This research
work has an important application in computational algebra and theoretical computer science.
Keywords :
Disparity, Order Preserving, Order Decreasing, Order Preserving and Decreasing Full Transformation Semigroup.