A Unified view of (Complete) Regularity and Certain Variants of (Complete) Regularity
Canadian journal of mathematics, Tome 36 (1984) no. 5, pp. 783-794

Voir la notice de l'article provenant de la source Cambridge University Press

Regularity and complete regularity are important topological properties and several generalizations of them occur in the literature on separation axioms. The properties of certain of these variants of (complete) regularity are similar to those of (complete) regularity and their theories run, either in part or in the whole, parallel to the theory of (complete) regularity. All the more, analogies inherent in their definitions as well as the nature of results obtained in the process of their study suggest the need of formulating a coherent unified theory encompassing the theory of (complete) regularity and its generalizations. An attempt leading towards the fulfillment of this need constitutes the theme of the present paper.Section 2 is devoted to preliminaries and basic definitions. In Section 3 we devise a framework which leads to the formulation of a unified theorv of (complete) regularity, almost (complete) regularity, ([26,], [27], [28]), (complete) s-regularity [13], (functionally) Hausdorff spaces, R1 -spaces [3], and others.
Kohli, J. K. A Unified view of (Complete) Regularity and Certain Variants of (Complete) Regularity. Canadian journal of mathematics, Tome 36 (1984) no. 5, pp. 783-794. doi: 10.4153/CJM-1984-045-8
@article{10_4153_CJM_1984_045_8,
     author = {Kohli, J. K.},
     title = {A {Unified} view of {(Complete)} {Regularity} and {Certain} {Variants} of {(Complete)} {Regularity}},
     journal = {Canadian journal of mathematics},
     pages = {783--794},
     year = {1984},
     volume = {36},
     number = {5},
     doi = {10.4153/CJM-1984-045-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1984-045-8/}
}
TY  - JOUR
AU  - Kohli, J. K.
TI  - A Unified view of (Complete) Regularity and Certain Variants of (Complete) Regularity
JO  - Canadian journal of mathematics
PY  - 1984
SP  - 783
EP  - 794
VL  - 36
IS  - 5
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1984-045-8/
DO  - 10.4153/CJM-1984-045-8
ID  - 10_4153_CJM_1984_045_8
ER  - 
%0 Journal Article
%A Kohli, J. K.
%T A Unified view of (Complete) Regularity and Certain Variants of (Complete) Regularity
%J Canadian journal of mathematics
%D 1984
%P 783-794
%V 36
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1984-045-8/
%R 10.4153/CJM-1984-045-8
%F 10_4153_CJM_1984_045_8

[1] 1. Brandenburg, H., On a class of nearness spaces and the epireflective hull of developable topological spaces, Proc. of the Int. Topol. Symposium, Belgrade (1979). Google Scholar

[2] 2. Chaber, J., Remarks on open closed mappings, Fund Math. 74 (1972), 197–208. Google Scholar

[3] 3. Davis, A. S., Indexed system of neighbourhoods for general topological spaces, Amer. Math. Monthly 65 (1961), 888–893. Google Scholar

[4] 4. Dorsett, Charles, T-identification spaces and R-spaces, Kyungpook Mathematics J. 18 (1978), 167–174. Google Scholar

[5] 5. Dugundji, James, Topology (Allyn and Bacon, Boston, 1966). Google Scholar

[6] 6. Engelking, R. and Mrówka, S., On E-compact spaces, Bull. Acad. Polon. Sci. Ser. Sci. Math Astro. Phys. 6 (1958), 429–436. Google Scholar

[7] 7. Gentry, K. R. and Hoyle, H. B. III, C-continuous functions, Yokohama Math. J. 18 (1970), 71–76. Google Scholar

[8] 8. Helderman, N. C., The category of D-completely regular spaces is simple, Trans. Amer. Math Soc. 262 (1980), 437–446. Google Scholar

[9] 9. Helderman, N. C., Develop ability and new separation axioms, Can. J. Math. 33 (1981), 641–663. Google Scholar

[10] 10. Jones, J. Jr., On semiconnected mappings of topological spaces, Proc. Amer. Math. Soc. 19 (1968), 174–175. Google Scholar

[11] 11. Kohli, J. K., A class of mappings containing all continuous and all semiconnected mappings, Proc. Amer. Math. Soc. 72 (1978), 175–181. Google Scholar

[12] 12. Kohli, J. K., Sufficient conditions for continuity of certain connected functions, Glasnik Mat. 15 (1980), 377–381. Google Scholar

[13] 13. Kohli, J. K., S-continuous functions and certain weak forms of regularity and complete regularity, Math. Nachr. 97 (1980), 189–196. Google Scholar

[14] 14. Kohli, J. K., S-continuous mappings, certain weak forms of normality and strongly semilocally connected spaces, Math. Nachr. 99 (1980), 69–76. Google Scholar

[15] 15. Kohli, J. K., A unified approach to continuous and certain non-continuous functions, Symposium General Topology and its Applications, University of Delhi, Delhi (1978). Google Scholar

[16] 16. Kohli, J. K., A unified approach to continuous and certain non-continuous functions, characterizations of spaces and product theorems, Seminar on Functional Analysis and General Topology, Gujrat University, Ahmedabad (1981). Google Scholar

[17] 17. Kohli, J. K., A decomposition of (complete) regularity in topological spaces (preprint). Google Scholar

[18] 18. Livson, B. U., Cardinality and separation axioms, Math. Student 45 (1977), 88–91. Google Scholar

[19] 19. Long, P. E., Concerning semiconnected mappings, Proc. Amer. Math. Soc. 21 (1969), 117–118. Google Scholar

[20] 20. Mack, J., Countable paracompactness and weak normality properties, Trans. Amer. Math. Soc 148 (1910), 265–272. Google Scholar

[21] 21. Mathur, A., δ-continuous functions (preprint). Google Scholar

[22] 22. Mrówka, S., Further results on E-compact spaces I, Acta Math. 120 (1968), 161–185. Google Scholar

[23] 23. Noiri, T., δ-continuous mappings, J. Korean Math. Soc. 16 (1979/80), 161–166. Google Scholar

[24] 24. Porter, J. R. and Thomas, J., On H-closed and minimal Hausdorff spaces, Trans. Amer. Math Soc. 138 (1969), 159–170. Google Scholar

[25] 25. Singal, M. K. and Singal, A. R., Almost continuous mappings, Yokohama Math. J. 76 (1968), 63–73. Google Scholar

[26] 26. Singal, M. K. and Arya, S. P., On almost regular spaces, Glasnik Mat. Ser III 4 (1969), 89–99. Google Scholar

[27] 27. Singal, M. K. and Arya, S. P., On almost normal and almost completely regular spaces, Glasnik Mat. Ser III 5 (1970), 141–152. Google Scholar

[28] 28. Singal, M. K. and Mathur, A., A note on almost completely regular spaces, Glasnik Mat. Ser Ill 6 (1971), 345–350. Google Scholar

[29] 29. Stone, M. H., Applications of the theory of Boolean rings to general topology, Trans. Amer. Math Soc. 41 (1937), 375–481. Google Scholar

[30] 30. Veličko, N. V., On E-closed spaces, Mat. Sb. 70 (1966), 98–112. Google Scholar

[31] 31. Whyburn, G. T., Semilocally connected sets, Amer. J. Math. 61 (1939), 733–741. Google Scholar

[32] 32. Whyburn, G. T., Directed families of sets and closedness of functions, Proc. Nat. Acad. Sci. USA 54 (1965), 688–692. Google Scholar

[33] 33. Willard, S., General topology (Addison Wesley Reading, Massachusetts, 1970). Google Scholar

[34] 34. Younglove, J. N., A locally connected, complete Moore space on which every real-valued continuous function is constant, Proc. Amer. Math. Soc. 20 (1969), 527–530. Google Scholar

[35] 35. Zaičev, V., Some classes of topological spaces and their bicompactifications, Soviet Math. Dokl 9 (1968), 192–193. Google Scholar

Cité par Sources :