ON LACUNARY STATISTICAL LIMIT AND CLUSTER POINTS OF SEQUENCES OF FUZZY NUMBERS

被引:0
作者
Kumar, P. [1 ]
Bhatia, S. S. [2 ]
Kumar, V. [1 ]
机构
[1] Haryana Coll Technol & Management, Dept Math, Kaithal 136027, Haryana, India
[2] Thapar Univ, Sch Math & Comp Applicat, Patiala, Punjab, India
来源
IRANIAN JOURNAL OF FUZZY SYSTEMS | 2013年 / 10卷 / 06期
关键词
Statistical convergence; Lacunary sequences; Statistical limit points; Statistical cluster points; Fuzzy number sequences; CONVERGENCE; SUMMABILITY; SUPERIOR; SPACES;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
For any lacunary sequence theta = (k(r)), we define the concepts of So limit point and So cluster point of a sequence of fuzzy numbers X = (X-k) We introduce the new sets Lambda(F)(S theta) (X), Gamma(F)(S theta) (X) and prove some inclusion relaions between these and the sets Lambda(F)(S) (X), Gamma(F)(S) (X) introduced in [3] by Aytar [S. Aytar, Statistical limit points of sequences of fuzzy numbers, Inform. Sci. 165 (2004) 129-1381. Later, we find restriction on the lacunary sequence theta = (k(r)) for which the sets Lambda(F)(S theta) (X) and Gamma(F)(S theta) (X) respectively coincides with the sets Lambda(F)(S) (X) and Gamma(F)(S) (X).
引用
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页码:53 / 62
页数:10
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