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$ii \delta_g$-closed set in topological spaces | ||
| International Journal of Nonlinear Analysis and Applications | ||
| دوره 12، شماره 2، بهمن 2021، صفحه 2049-2055 اصل مقاله (397.8 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2021.5342 | ||
| نویسندگان | ||
| Zainab Awad Kadhum* ؛ Ali Khalaf Hussain | ||
| Department of Mathematics, College of Education for Pure Science, Wassit University, Iraq | ||
| تاریخ دریافت: 16 اسفند 1399، تاریخ بازنگری: 13 اردیبهشت 1400، تاریخ پذیرش: 24 تیر 1400 | ||
| چکیده | ||
| The purpose of this study is to determine if it is possible to use the class of $\delta_g-$close sets and $\delta-$closed sets to find a new class of close sets, namely $ii\delta_g-$close sets and $ii\delta-$close sets. We use these new classes to arrive at the separation axiom, which is the separation axiom of $ii-T_{3/4}.$ We also use the properties of $\delta \hat{g}-$closed sets to find new class of close sets, namely $ii\delta \hat{g}-$closed set. We use it to create a new type of separation axiom. The study found new closed sets, namely: $ii\delta \hat{g}-$closed sets is introduced for topological space. We will also prove that category falls between the class of $ii\delta-$closed set and the class of $iigs-$closed set. As well study the relationship between it and other closed sets, such as the closed set of type $iigs-$ as well as the closed set of type $iig$, and then, through these closed sets, we will study new types of the axiom of separation, which are $ ii- T_{3/4}$ space and $ ii- \hat{T}_{3/4}$ space, and also clarify the relationship between the axiom of separation, and some of the closed and open sets previously studied. The study also included the relationship between the axiom of separation, of type $ii-T_{1/2}$ space and $ii- T_{3/4}$ space as well as the axiom of separation of type $ii- T_{3/4}$ space and $ ii \hat{T}_{3/4}$ space. The study included some important proofs. The study also included a chart, showing the relationship between closed sets of types that were studied and can be used. | ||
| کلیدواژهها | ||
| $ii-$generalized closed sets؛ $iidelta_g$-closed؛ $hat{g}-$open sets؛ $iidelta hat{g}-$closed set؛ $ ii- T_{3/4}$ and $ ii- hat{T}_{3/4}$ space | ||
| مراجع | ||
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[1] M. Abd El-Monsef, S. Rose Mary and M. Lellis Thivagar, On αg−closed sets intopological spaces, Assiut Univ. J. Math. Comput. Sci. 36 (2007) 43–51. [2] F.G. Arenas, J. Dontchev and M. Ganster, On lambda-sets and the dual ofgeneralized continuity, Ques. Ans. General Top. 15 (1997) 3–14. [3] S. Arya, Characterizations of s−normal spaces, Indian J. Pure Appl. Math. 21 (1990) 717–719. [4] P. Bhattacharyya, Semi-generalized closed sets in topology, Indian J. Math. 29 (1987) 375–382. [5] M. Caldas and R. K. Saraf, A research on characterizations of semi-spaces, Divulgaciones Mat. 8 (2000) 43–50. [6] J. Dontchev, On δ−generalized closed sets and T3/4−spaces, Mem. Fac. Sci. Kochi Univ. Ser. A Math. 17 (1996) 15–31. [7] M. V. Kumar, Between closed sets and g−closed sets, Mem. Fac. Sci. KochiUniv. Math. 21 (2000) 1–19. [8] N. Levine, Semi-open sets and semi-continuity in topological spaces, Amer. Math. Month. 70 (1963) 36–41. [9] N. Levine, Generalized closed sets in topology, Rendi. Circ. di Palermo 19 (1970) 89–96. [10] H. Maki, Generalized α−closed sets in topology, Bull. Fukuoka Univ. 42 (1993) 13–21. [11] H. Maki, Associated topologies of generalized α−closed sets and α−generalizedclosed sets, Mem. Fac. Sci. Kochi Univ. Math. 15 (1994) 51–63. [12] A. Mashhour, On preconlinuous and weak precontinuous mappings, Proc. Math. Phys. Soc. Egypt. 3 (1982) 47–53. [13] M. Navaneethakrishnan, P. Periyasamy and S. P. Missier, ˆδ−closed sets in ideal topological spaces, IJAR 1 (2015) 813–819. [14] O. Njastad, On some classes of nearly open sets, Pacific J. Math. 15 (1965) 961–970. [15] M. Veera Kumar, Between semi-closed sets and semi-pre-closed set, Rendi. dell’Istituto Mat. dell’Univ. Trieste. Int. J. Math. 32 (2000) 25–41. [16] N. Velicko, H-closed topological spaces, Amer. Math. Soc. Transl. 78 (1968) 103–118. | ||
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