In this paper, we introduce and investigate several new concepts in the framework of single-valued neutrosophic soft ideal topological spaces, including $ \mathbf{t} $-single valued neutrosophic soft $ \delta\mathcal{I} $-cluster points and $ \theta\mathcal{I} $-cluster points, together with their corresponding $ \delta \mathcal{I} $-closure and $ \theta\mathcal{I} $-closure operators. We further study $ \mathbf{t} $-single valued neutrosophic soft $ \delta\mathcal{I} $-closed and $ \theta\mathcal{I} $-closed sets and examine their fundamental properties. In addition, various types of continuity are introduced and analyzed, such as single-valued neutrosophic soft $ \delta \mathcal{I} $-continuity, $ \theta\mathcal{I} $-continuity, and almost $ \mathcal{I} $-continuity, along with stronger forms including strongly $ \theta $-ideal continuity and almost ideal continuity. Moreover, the notions of single-valued neutrosophic soft $ \mathcal{I} $-regular and almost $ \mathcal{I} $-regular spaces are established within this setting, and several relationships among these concepts are derived, providing a deeper understanding of their structural properties and potential applications.
Citation: Yaser Saber. On some topological properties in single-valued neutrosophic soft ideal spaces[J]. AIMS Mathematics, 2026, 11(8): 26136-26167. doi: 10.3934/math.20261047
In this paper, we introduce and investigate several new concepts in the framework of single-valued neutrosophic soft ideal topological spaces, including $ \mathbf{t} $-single valued neutrosophic soft $ \delta\mathcal{I} $-cluster points and $ \theta\mathcal{I} $-cluster points, together with their corresponding $ \delta \mathcal{I} $-closure and $ \theta\mathcal{I} $-closure operators. We further study $ \mathbf{t} $-single valued neutrosophic soft $ \delta\mathcal{I} $-closed and $ \theta\mathcal{I} $-closed sets and examine their fundamental properties. In addition, various types of continuity are introduced and analyzed, such as single-valued neutrosophic soft $ \delta \mathcal{I} $-continuity, $ \theta\mathcal{I} $-continuity, and almost $ \mathcal{I} $-continuity, along with stronger forms including strongly $ \theta $-ideal continuity and almost ideal continuity. Moreover, the notions of single-valued neutrosophic soft $ \mathcal{I} $-regular and almost $ \mathcal{I} $-regular spaces are established within this setting, and several relationships among these concepts are derived, providing a deeper understanding of their structural properties and potential applications.
| [1] | L. A. Zadeh, Fuzzy sets, Inf. Control, 8 (1965), 338–353. https://doi.org/10.1016/S0019-9958(65)90241-X |
| [2] |
D. Molodtsov, Soft set theory—First results, Comput. Math. Appl., 37 (1999), 19–31. https://doi.org/10.1016/S0898-1221(99)00056-5 doi: 10.1016/S0898-1221(99)00056-5
|
| [3] | P. K. Maji, R. Biswas, A. R. Roy, Soft set theory, Comput. Math. Appl., 45 (2003), 555–562. https://doi.org/10.1016/S0898-1221(03)00016-6 |
| [4] | M. Shabir, M. Naz, On soft topological spaces, Comput. Math. Appl., 61 (2011), 1786–1799. https://doi.org/10.1016/j.camwa.2011.02.006 |
| [5] | P. Majumdar, S. K. Samanta, On soft mappings, Comput. Math. Appl., 60 (2010), 2666–2672. https://doi.org/10.1016/j.camwa.2010.09.004 |
| [6] | A. Kharal, B. Ahmad, Mappings on soft classes, New Math. Nat. Comput., 7 (2011), 471–481. https://doi.org/10.1142/S1793005711002025 |
| [7] | A. Aygunoglu, H. Aygun, Some notes on soft topological spaces, Neural Comput. Appl., 21 (2012), 113–119. |
| [8] |
M. Akdag, A. Ozkan, Soft $b$-open sets and soft $b$-continuous functions, Math. Sci., 8 (2014), 124. https://doi.org/10.1007/s40096-014-0124-7 doi: 10.1007/s40096-014-0124-7
|
| [9] |
T. Y. Öztürk, S. Bayramov, Topology on soft continuous function spaces, Math. Comput. Appl., 22 (2017), 32. https://doi.org/10.3390/mca22020032 doi: 10.3390/mca22020032
|
| [10] |
T. M. Al-shami, A. Mhemdi, A weak form of soft $\alpha$-open sets and its applications via soft topologies, AIMS Math., 8 (2023), 11373–11396. https://doi.org/10.3934/math.2023576 doi: 10.3934/math.2023576
|
| [11] |
T. M. Al-shami, Homeomorphism and quotient mappings in infrasoft topological spaces, J. Math., 2021 (2021), 3388288. https://doi.org/10.1155/2021/3388288 doi: 10.1155/2021/3388288
|
| [12] |
T. M. Al-shami, F. A. A. Shaheen, A. A. Azzam, M. Omran, Feeble semi-supra open soft sets and their applications on supra soft topologies, Int. J. Anal. Appl., 24 (2026), 70. https://doi.org/10.28924/2291-8639-24-2026-70 doi: 10.28924/2291-8639-24-2026-70
|
| [13] |
T. M. Al-shami, H. Alzubaidi, H. A. Othman, S. M. Al-Mekhlafi, Feeble $b$-supra open soft sets and the essential topological operators inspired by them, Int. J. Anal. Appl., 24 (2026), 189. https://doi.org/10.28924/2291-8639-24-2026-189 doi: 10.28924/2291-8639-24-2026-189
|
| [14] | P. K. Maji, R. Biswas, A. R. Roy, Fuzzy soft sets, J. Fuzzy Math., 9 (2001), 589–602. |
| [15] | A. Aygüno$\breve{g}$lu, V. Çetkin, H. Aygün, An introduction to fuzzy soft topological spaces, Hacet. J. Math. Stat., 43 (2014), 197–208. |
| [16] | V. Çetkin, A. Aygüno$\breve{g}$lu, H. Aygün, On soft fuzzy closure and interior operators, Utilitas Math., 99 (2016), 341–367. |
| [17] | A. P. Šostak, On a fuzzy topological structure, In: Z. Frolík, V. Souček, J. Vinárek, Proceedings of the 13th Winter School on Abstract Analysis, Section of Topology, 1985, 89–103. |
| [18] |
I. M. Taha, A new approach to separation and regularity axioms via fuzzy soft sets, Ann. Fuzzy Math. Inf., 20 (2020), 115–123. https://doi.org/10.30948/AFMI.2020.20.2.115 doi: 10.30948/AFMI.2020.20.2.115
|
| [19] | I. M. Taha, Some new separation axioms in fuzzy soft topological spaces, Filomat, 35 (2021), 1775–1783. |
| [20] | V. Çetkin, H. Aygün, Fuzzy soft semiregularization spaces, Ann. Fuzzy Math. Inf., 7 (2014), 687–697. |
| [21] |
I. M. Taha, Compactness on fuzzy soft $r$-minimal spaces, Int. J. Fuzzy Logic Intell. Syst., 21 (2021), 251–258. https://doi.org/10.5391/IJFIS.2021.21.3.251 doi: 10.5391/IJFIS.2021.21.3.251
|
| [22] |
W. Alqurashi, I. M. Taha, On fuzzy soft $\alpha$-open sets, $\alpha$-continuity, and $\alpha$-compactness: some novel results, Eur. J. Pure Appl. Math., 17 (2024), 4112–4134. https://doi.org/10.29020/nybg.ejpam.v17i4.5330 doi: 10.29020/nybg.ejpam.v17i4.5330
|
| [23] |
I. Alshammari, I. M. Taha, On fuzzy soft $\beta$-continuity and $\beta$-irresoluteness: some new results, AIMS Math., 9 (2024), 11304–11319. https://doi.org/10.3934/math.2024554 doi: 10.3934/math.2024554
|
| [24] |
I. Alshammari, O. Taha, M. El-Bably, I. Taha, On $r$-fuzzy soft $\delta$-open sets with applications in fuzzy soft topological spaces, Eur. J. Pure Appl. Math., 18 (2025), 5733. https://doi.org/10.29020/nybg.ejpam.v18i1.5733 doi: 10.29020/nybg.ejpam.v18i1.5733
|
| [25] | F. Smarandache, A unifying field in logics: neutrosophic logic. Neutrosophy, neutrosophic set, neutrosophic probability and statistics, 2007. Available from: https://philarchive.org/rec/SMAAUF-2. |
| [26] | G. Nordo, S. Jafari, A. Mehmood, B. Basumatary, A Python framework for neutrosophic sets and mappings, Neutrosophic Sets Syst., 65 (2024), 199–236. |
| [27] |
J. Ye, Single valued neutrosophic cross-entropy for multicriteria decision making problems, Appl. Math. Model., 38 (2014), 1170–1175. https://doi.org/10.1016/j.apm.2013.07.020 doi: 10.1016/j.apm.2013.07.020
|
| [28] |
Y. Saber, F. Alsharari, F. Smarandache, On single-valued neutrosophic ideals in Šostak sense, Symmetry, 12 (2020), 193. https://doi.org/10.3390/sym12020193 doi: 10.3390/sym12020193
|
| [29] |
Y. Saber, F. Alsharari, F. Smarandache, M. Abdel-Sattar, Connectedness and stratification of single-valued neutrosophic topological spaces, Symmetry, 12 (2020), 1464. https://doi.org/10.3390/sym12091464 doi: 10.3390/sym12091464
|
| [30] |
Y. Saber, F. Alsharari, F. Smarandache, An introduction to single-valued neutrosophic soft topological structure, Soft Comput., 26 (2022), 7107–7122. https://doi.org/10.1007/s00500-022-07150-4 doi: 10.1007/s00500-022-07150-4
|
| [31] |
Y. Saber, H. Alohali, T. Elmasry, F. Smarandache, On single-valued neutrosophic soft uniform spaces, AIMS Math., 9 (2024), 412–439. https://doi.org/10.3934/math.2024023 doi: 10.3934/math.2024023
|
| [32] |
F. Alsharari, Y. Saber, H. Alohali, M. H. Alqahtani, M. Ebodey, T. Elmasry, et al., On stratified single-valued soft topogenous structures, Heliyon, 10 (2024), e27926. https://doi.org/10.1016/j.heliyon.2024.e27926 doi: 10.1016/j.heliyon.2024.e27926
|
| [33] | H. Wang, F. Smarandache, Y. Zhang, R. Sunderraman, Single valued neutrosophic sets, In: F. Smarandache, Multispace & multistructure. Neutrosophic transdisciplinarity (100 collected papers of science), North-European Scientific Publishers, 2010,410–413. |
| [34] |
F. Alsharari, On single-valued neutrosophic soft filter convergence, Contemp. Math., 5 (2024), 6437. https://doi.org/10.37256/cm.5420244904 doi: 10.37256/cm.5420244904
|