Let $ V $ be a vector space over a field $ \mathbb{F} $ and let $ W $ be a subspace of $ V $. The semigroup of partial linear transformations on $ V $ whose restriction to $ W $ belongs to an injective partial linear transformation semigroup $ \mathcal{I}(W) $ is denoted by $ P_{\mathcal{I}(W)}(V) $. In this paper, we describe Green's relations for $ P_{\mathcal{I}(W)}(V) $, characterize its regular elements, and give necessary and sufficient conditions for $ P_{\mathcal{I}(W)}(V) $ to be regular, inverse, or completely regular. We also analyze the ideal structure of $ P_{\mathcal{I}(W)}(V) $, identifying its maximal and minimal ideals.
Citation: Kritsada Sangkhanan. Semigroups of partial linear transformations whose restrictions belong to an injective partial linear transformation semigroup[J]. AIMS Mathematics, 2025, 10(12): 29470-29487. doi: 10.3934/math.20251294
Let $ V $ be a vector space over a field $ \mathbb{F} $ and let $ W $ be a subspace of $ V $. The semigroup of partial linear transformations on $ V $ whose restriction to $ W $ belongs to an injective partial linear transformation semigroup $ \mathcal{I}(W) $ is denoted by $ P_{\mathcal{I}(W)}(V) $. In this paper, we describe Green's relations for $ P_{\mathcal{I}(W)}(V) $, characterize its regular elements, and give necessary and sufficient conditions for $ P_{\mathcal{I}(W)}(V) $ to be regular, inverse, or completely regular. We also analyze the ideal structure of $ P_{\mathcal{I}(W)}(V) $, identifying its maximal and minimal ideals.
| [1] |
Y. Chaiya, Natural partial order and finiteness conditions on semigroups of linear transformations with invariant subspaces, Semigroup Forum, 99 (2019), 579–590. https://doi.org/10.1007/s00233-019-10012-5 doi: 10.1007/s00233-019-10012-5
|
| [2] |
R. Chinram, S. Baupradist, Magnifying elements in semigroups of linear transformations with invariant subspaces, J. Interdiscipl. Math., 21 (2018), 1457–1462. https://doi.org/10.1080/09720502.2018.1507709 doi: 10.1080/09720502.2018.1507709
|
| [3] | A. H. Clifford, G. B. Preston, The Algebraic Theory of Semigroups, Volume I, Providence: American Mathematical Society, 1961. |
| [4] | A. H. Clifford, G. B. Preston, The Algebraic Theory of Semigroups, Volume II, Providence: American Mathematical Society, 1961. |
| [5] | P. Honyam, J. Sanwong, Semigroups of linear transformations with invariant subspaces, Int. J. Algebra, 6 (2012), 375–386. |
| [6] | J. M. Howie, Fundamentals of Semigroup Theory, New York: Oxford University Press, 1995. |
| [7] | P. Huisheng, A note on semigroups of linear transformations with invariant subspaces, Int. J. Algebra, 6 (2012), 1319–1324. |
| [8] |
J. Ittharat, R. P. Sullivan, Factorisable semigroups of linear transformations, Algebra Colloq., 13 (2006), 295–306. https://doi.org/10.1142/s1005386706000265 doi: 10.1142/s1005386706000265
|
| [9] |
P. Jampachon, M. Saichalee, R. P. Sullivan, Locally factorisable transformation semigroups, Southeast Asian Bull. Math., 25 (2001), 233–244. https://doi.org/10.1007/s10012-001-0233-8 doi: 10.1007/s10012-001-0233-8
|
| [10] |
S. Nenthein, Y. Kemprasit, On transformation semigroups which are BQ-semigroups, Int. J. Math. Math. Sci., 2006 (2006), 012757. https://doi.org/10.1155/IJMMS/2006/12757 doi: 10.1155/IJMMS/2006/12757
|
| [11] | S. Roman, Advanced Linear Algebra, 3 Eds., New York: Springer, 2007. |
| [12] |
K. Sangkhanan, Semigroups of linear transformations whose restrictions belong to a general linear group, Commun. Algebra, 52 (2024), 5339–5351. https://doi.org/10.1080/00927872.2024.2370467 doi: 10.1080/00927872.2024.2370467
|
| [13] |
M. Sarkar, S. N. Singh, On certain semigroups of transformations whose restrictions belong to a given semigroup, Semigroup Forum, 108 (2024), 707–723. https://doi.org/10.1007/s00233-024-10448-4 doi: 10.1007/s00233-024-10448-4
|
| [14] |
N. Sawatraksa, P. Tantong, Left and right regular elements of some subsemigroups of the linear transformations semigroups with invariant subspace, European J. Pure Appl. Math., 18 (2025), 5623. https://doi.org/10.29020/nybg.ejpam.v18i1.5623 doi: 10.29020/nybg.ejpam.v18i1.5623
|
| [15] |
R. P. Sullivan, Partial orders on linear transformation semigroups, Proc. Royal Soc. Edinburgh: Sec. A Math., 135 (2005), 413–437. https://doi.org/10.1017/S0308210500003942 doi: 10.1017/S0308210500003942
|