Research Article
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Year 2025, Volume: 54 Issue: 4, 1356 - 1370, 29.08.2025
https://doi.org/10.15672/hujms.1574594

Abstract

Project Number

Nos.12371462;No.2019zy20

References

  • [1] J.M. Fang, Stratified L-ordered convergence structures, Fuzzy Sets Syst. 161, 2130–2149, 2010.
  • [2] Y. Gao and B. Pang, Subcategories of the category of $\top$-convergence spaces, Hacet. J. Math. Stat. 53(1), 88–106, 2024.
  • [3] X. Han and B. Pang, Convergence structures in L-concave spaces, Iran. J. Fuzzy Syst. 21(4), 61–80, 2024.
  • [4] U. Höhle and A.P. ostak, Axiomatic foundations of fixed-basis fuzzy topology, Mathematics of Fuzzy Sets. 123–173, 1999.
  • [5] G. Jäger, A category of L-fuzzy convergence spaces, Quaest. Math. 24, 501–517, 2001.
  • [6] R. Lowen, Convergence in fuzzy topological spaces, Gen. Topol. Appl. 10, 147–160, 1979.
  • [7] Y. Marugama, Lattice-valued fuzzy convex geometry, RIMS. Kokyuroku 1641, 22–37, 2009.
  • [8] J.V. Mill, Supercompactness and wallman spaces, Math. Cent. Tracts, 1977.
  • [9] B. Pang, Convergence structures in M-fuzzifying convex spaces, Quaest. Math. 43, 1541–1561, 2020.
  • [10] B. Pang, L-fuzzifying convex structures as L-convex structures, J. Nonlinear Convex Anal. 21, 2831–2841, 2020.
  • [11] B. Pang, Hull operators and interval operators in (L,M)–fuzzy convex spaces, Fuzzy Sets Syst. 405, 106–127, 2021.
  • [12] B. Pang, Quantale-valued convex structures as lax algebras, Fuzzy Sets Syst. 473, 108737, 2023.
  • [13] B. Pang, Fuzzy convexities via overlap functions, IEEE Trans. Fuzzy Syst. 31(4), 1071–1082, 2023.
  • [14] M.V. Rosa, On fuzzy topology fuzzy convexity spaces and fuzzy local convexity, Fuzzy Sets Syst. 62, 97–100, 1994.
  • [15] F.G. Shi and Z.Y. Xiu, A new approach to the fuzzification of convex structures, J. Appl. Math. 2014, 1–12, 2014.
  • [16] F.G. Shi and Z.Y. Xiu, (L,M)-fuzzy convex structures, J. Nonlinear Sci. Appl. 10, 3655–3669, 2017.
  • [17] V.P. Soltan, D-convexity in graphs, Soviet Math. Dokl. 28, 419–421, 1983.
  • [18] F.A. Valentine, Convex sets, McGraw-Hill, 1964.
  • [19] M.L.J. Van De Vel, Theory of convex structures, Mathematics and Computer Science, Free University, Amsterdam, The Netherlands, 1–540, 1993.
  • [20] J.C. Varlet, Remarks on distributive lattices, Bull. Acad. Pol. Sci. 23, 1143–1147, 1975.
  • [21] K. Wang and F.-G. Shi, Fuzzifying interval operators, fuzzifying convex structures and fuzzy pre-orders, Fuzzy Sets Syst. 39, 74–95, 2020.
  • [22] X.Y. Wu, E.Q. Li and S.Z. Bai, Geometric properties of M-fuzzifying convex structures, J. Intell. Fuzzy Syst. 32, 4273–4284, 2017.
  • [23] Z.Y. Xiu and B. Pang, A degree approach to special mappings between M-fuzzifying convex spaces, J. Intell. Fuzzy Syst. 35, 705–716, 2018.
  • [24] W. Yao, On L-fuzzifying convergence spaces, Iran. J. Fuzzy Syst. 6, 63–80, 2009.
  • [25] L. Zhang and B. Pang, A new approach to lattice-valued convergence groups via $\top$- filters, Fuzzy Sets Syst. 455, 198–221, 2023.
  • [26] L. Zhang and P. Pang, Convergence structures in (L,M)-fuzzy convex spaces, Filomat 37(9), 2859–2877, 2023.
  • [27] L. Zhang and P. Pang, Wenbo Li, Subcategories of the category of stratified (L,M)- semiuniform convergence tower spaces, Iran. J. Fuzzy Syst. 20(4), 179–192, 2023.
  • [28] F. Zhao and P. Pang, Equivalence among L-closure (interior) operators, L-closure (interior) systems and L-enclosed (internal) relations, Filomat 36(3), 979–1003, 2022.
  • [29] H. Zhao, O.R. Sayed, E. El-Sanousy, Y.H.R. Sayed and G.X. Chen, On separation axioms in (L,M)-fuzzy convex structures, J. Intell. Fuzzy Syst. 40, 8765–8773, 2021.

$M$-fuzzifying convexity-preserving mappings and $M$-fuzzifying closure-preserving mappings

Year 2025, Volume: 54 Issue: 4, 1356 - 1370, 29.08.2025
https://doi.org/10.15672/hujms.1574594

Abstract

In this paper, $M$-fuzzifying convexity-preserving mappings between $M$-fuzzifying convergence spaces, and $M$-fuzzifying closure-preserving mappings between $M$-fuzzifying preconvex closure spaces are proposed. The relationships of $M$-fuzzifying convexity-preserving mappings with $M$-CP mappings, $M$-fuzzifying preconvex closure operators, and separation properties in $M$-fuzzifying convergence spaces are discussed. Moreover, it is proved that $S_0$, $S_1$ and $S_2$ separation properties are preserved by homeomorphisms in $M$-fuzzifying convergence spaces.

Ethical Statement

This study does not involve human or animal experimentation, and the authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Supporting Institution

This research was funded by the National Natural Science Foundation of China (Nos.12371462) and the Fundamental Research Funds for the Central Universities (No.2019zy20).

Project Number

Nos.12371462;No.2019zy20

Thanks

We would like to thank the referees and the editor for their constructive suggestions.

References

  • [1] J.M. Fang, Stratified L-ordered convergence structures, Fuzzy Sets Syst. 161, 2130–2149, 2010.
  • [2] Y. Gao and B. Pang, Subcategories of the category of $\top$-convergence spaces, Hacet. J. Math. Stat. 53(1), 88–106, 2024.
  • [3] X. Han and B. Pang, Convergence structures in L-concave spaces, Iran. J. Fuzzy Syst. 21(4), 61–80, 2024.
  • [4] U. Höhle and A.P. ostak, Axiomatic foundations of fixed-basis fuzzy topology, Mathematics of Fuzzy Sets. 123–173, 1999.
  • [5] G. Jäger, A category of L-fuzzy convergence spaces, Quaest. Math. 24, 501–517, 2001.
  • [6] R. Lowen, Convergence in fuzzy topological spaces, Gen. Topol. Appl. 10, 147–160, 1979.
  • [7] Y. Marugama, Lattice-valued fuzzy convex geometry, RIMS. Kokyuroku 1641, 22–37, 2009.
  • [8] J.V. Mill, Supercompactness and wallman spaces, Math. Cent. Tracts, 1977.
  • [9] B. Pang, Convergence structures in M-fuzzifying convex spaces, Quaest. Math. 43, 1541–1561, 2020.
  • [10] B. Pang, L-fuzzifying convex structures as L-convex structures, J. Nonlinear Convex Anal. 21, 2831–2841, 2020.
  • [11] B. Pang, Hull operators and interval operators in (L,M)–fuzzy convex spaces, Fuzzy Sets Syst. 405, 106–127, 2021.
  • [12] B. Pang, Quantale-valued convex structures as lax algebras, Fuzzy Sets Syst. 473, 108737, 2023.
  • [13] B. Pang, Fuzzy convexities via overlap functions, IEEE Trans. Fuzzy Syst. 31(4), 1071–1082, 2023.
  • [14] M.V. Rosa, On fuzzy topology fuzzy convexity spaces and fuzzy local convexity, Fuzzy Sets Syst. 62, 97–100, 1994.
  • [15] F.G. Shi and Z.Y. Xiu, A new approach to the fuzzification of convex structures, J. Appl. Math. 2014, 1–12, 2014.
  • [16] F.G. Shi and Z.Y. Xiu, (L,M)-fuzzy convex structures, J. Nonlinear Sci. Appl. 10, 3655–3669, 2017.
  • [17] V.P. Soltan, D-convexity in graphs, Soviet Math. Dokl. 28, 419–421, 1983.
  • [18] F.A. Valentine, Convex sets, McGraw-Hill, 1964.
  • [19] M.L.J. Van De Vel, Theory of convex structures, Mathematics and Computer Science, Free University, Amsterdam, The Netherlands, 1–540, 1993.
  • [20] J.C. Varlet, Remarks on distributive lattices, Bull. Acad. Pol. Sci. 23, 1143–1147, 1975.
  • [21] K. Wang and F.-G. Shi, Fuzzifying interval operators, fuzzifying convex structures and fuzzy pre-orders, Fuzzy Sets Syst. 39, 74–95, 2020.
  • [22] X.Y. Wu, E.Q. Li and S.Z. Bai, Geometric properties of M-fuzzifying convex structures, J. Intell. Fuzzy Syst. 32, 4273–4284, 2017.
  • [23] Z.Y. Xiu and B. Pang, A degree approach to special mappings between M-fuzzifying convex spaces, J. Intell. Fuzzy Syst. 35, 705–716, 2018.
  • [24] W. Yao, On L-fuzzifying convergence spaces, Iran. J. Fuzzy Syst. 6, 63–80, 2009.
  • [25] L. Zhang and B. Pang, A new approach to lattice-valued convergence groups via $\top$- filters, Fuzzy Sets Syst. 455, 198–221, 2023.
  • [26] L. Zhang and P. Pang, Convergence structures in (L,M)-fuzzy convex spaces, Filomat 37(9), 2859–2877, 2023.
  • [27] L. Zhang and P. Pang, Wenbo Li, Subcategories of the category of stratified (L,M)- semiuniform convergence tower spaces, Iran. J. Fuzzy Syst. 20(4), 179–192, 2023.
  • [28] F. Zhao and P. Pang, Equivalence among L-closure (interior) operators, L-closure (interior) systems and L-enclosed (internal) relations, Filomat 36(3), 979–1003, 2022.
  • [29] H. Zhao, O.R. Sayed, E. El-Sanousy, Y.H.R. Sayed and G.X. Chen, On separation axioms in (L,M)-fuzzy convex structures, J. Intell. Fuzzy Syst. 40, 8765–8773, 2021.
There are 29 citations in total.

Details

Primary Language English
Subjects Operator Algebras and Functional Analysis, Topology
Journal Section Mathematics
Authors

Fei Li 0009-0002-5512-8215

Manyu Cui 0009-0004-4434-8532

Project Number Nos.12371462;No.2019zy20
Early Pub Date April 11, 2025
Publication Date August 29, 2025
Submission Date October 27, 2024
Acceptance Date December 2, 2024
Published in Issue Year 2025 Volume: 54 Issue: 4

Cite

APA Li, F., & Cui, M. (2025). $M$-fuzzifying convexity-preserving mappings and $M$-fuzzifying closure-preserving mappings. Hacettepe Journal of Mathematics and Statistics, 54(4), 1356-1370. https://doi.org/10.15672/hujms.1574594
AMA Li F, Cui M. $M$-fuzzifying convexity-preserving mappings and $M$-fuzzifying closure-preserving mappings. Hacettepe Journal of Mathematics and Statistics. August 2025;54(4):1356-1370. doi:10.15672/hujms.1574594
Chicago Li, Fei, and Manyu Cui. “$M$-Fuzzifying Convexity-Preserving Mappings and $M$-Fuzzifying Closure-Preserving Mappings”. Hacettepe Journal of Mathematics and Statistics 54, no. 4 (August 2025): 1356-70. https://doi.org/10.15672/hujms.1574594.
EndNote Li F, Cui M (August 1, 2025) $M$-fuzzifying convexity-preserving mappings and $M$-fuzzifying closure-preserving mappings. Hacettepe Journal of Mathematics and Statistics 54 4 1356–1370.
IEEE F. Li and M. Cui, “$M$-fuzzifying convexity-preserving mappings and $M$-fuzzifying closure-preserving mappings”, Hacettepe Journal of Mathematics and Statistics, vol. 54, no. 4, pp. 1356–1370, 2025, doi: 10.15672/hujms.1574594.
ISNAD Li, Fei - Cui, Manyu. “$M$-Fuzzifying Convexity-Preserving Mappings and $M$-Fuzzifying Closure-Preserving Mappings”. Hacettepe Journal of Mathematics and Statistics 54/4 (August2025), 1356-1370. https://doi.org/10.15672/hujms.1574594.
JAMA Li F, Cui M. $M$-fuzzifying convexity-preserving mappings and $M$-fuzzifying closure-preserving mappings. Hacettepe Journal of Mathematics and Statistics. 2025;54:1356–1370.
MLA Li, Fei and Manyu Cui. “$M$-Fuzzifying Convexity-Preserving Mappings and $M$-Fuzzifying Closure-Preserving Mappings”. Hacettepe Journal of Mathematics and Statistics, vol. 54, no. 4, 2025, pp. 1356-70, doi:10.15672/hujms.1574594.
Vancouver Li F, Cui M. $M$-fuzzifying convexity-preserving mappings and $M$-fuzzifying closure-preserving mappings. Hacettepe Journal of Mathematics and Statistics. 2025;54(4):1356-70.