λ-Statistical Convergence of a Sequence of Random Variables in Probability
Sanjoy Ghosal
Department of Mathematics, Kalyani Government Engineering College, Kalyani, Nadia-741235, West Bengal, India.
*Corresponding Author E-mail: sanjoykrghosal@yahoo.co.in
ABSTRACT:
In this paper the ideas of two types of convergences of a sequence of random variables, namely, λ -statistical convergence in probability and λ - statistical convergence in mean of order r are introduced and the interrelationship between them is investigated. Also their certain basic properties are studied.
KEYWORDS: Random variable, probability, λ -statistical convergence in probability, λ -statistical convergence in mean of order r.
Mathematics Subject Classification (2010): 40A05, 40G15, 60B10.
1. INTRODUCTION AND BACKGROUND:
The
idea of convergence of a real sequence was extended to statistical convergence
by Fast [9] (See also Schoenberg [13]) as follows: If
denotes the set of natural numbers and
then
denotes the cardinality of the set
The upper and lower natural densities of the set
is defined by
3. REFERENCES:
[1] P. Das, Some further results on ideal convergence in topological spaces, Topology and its Applications, 159 (2012) 2621-2626.
[2] P. Das, S. Ghosal, Some further results on
-Cauchy sequences and condition (AP), Computer and Mathematics with
Applications, 59 (2010) 2597-2600.
[3] P. Das, S. Ghosal, On
-Cauchy nets and completeness, Topology and its Applications, 157
(2010) 1152-1156.
[4] P. Das, S. Ghosal, When
-Cauchy nets in complete uniform spaces are
-convergent, Topology and its Applications, 158 (2011) 1529-1533.
[5] P. Das, S. Ghosal, S. Pal, Extending asymmetric convergence and Cauchy condition using ideals, Mathematica Slovaca, 63 (2013) 545-562.
[6] P. Das, K. Dutta, V. Karakaya, S. Ghosal, Some further generalizations of strong convergence in probabilistic metric space using ideals, Abstract and Applied Analysis., Volume 2013, Article ID 765060, 8 pages. doi. org/10.1155/2013/765060.
[7] P. Das, S. Pal, S. Ghosal, Some further remarks on ideal summability in 2-normed spaces, Applied Mathematics Letters, 24 (2011) 39-43.
[8] P. Das, E. Savas, S. Ghosal, On generalization of certain summability methods using ideals, Applied Mathematics Letters, 24, (2011), 1509-1514.
[9] H. Fast, Sur la convergence statistique, Colloq. Math. 2 (1951), 241-244.
[10] J. A. Fridy, On statistical convergence, Analysis, 5 (1985), 301-313.
[11] J. A. Fridy, M. K. Khan, Tauberian theorems via statistical convergence, Journal of Mathematical Analysis and Applications, 228 (1998), 73-95.
[12] T. Šalát, On statistically convergent sequences of real numbers, Mathematica Slovaca, 30 (1980), 139-150.
[13] I. J. Schoenberg, The integrability of certain functions and related summability methods, Amer. Math. Monthly, 66 (1959), 361-375.
[14] S. Ghosal,
-uniform continuity and
-uniform boundedness of a function, Demonstratio Mathematica, 45
(4) (2012), 887-894.
[15] S. Ghosal, Statistical convergence of a sequence of random variables and limit theorems, Applications of Mathematics, 4 (58) (2013) 423-437.
[16] S. Ghosal,
-statistical convergence of a sequence of random variables in
probability, Afrika Matematica, doi: 10.1007/s13370-013-0142-x.
[17] S. Ghosal, S. Pal, On asymmetric
and
-divergence, Demonstratio Mathematica, 46 (1) (2013), 137-147.
[18] B. K. Lahiri, P. Das,
and
-convergence in topological spaces, Math. Bohem., 130, (2005)
153-160.
[19] B. K. Lahiri, P. Das,
and
-convergence of nets, Real Analysis Exchange, 33, (2007-2008)
431-442.
[20] M. Mursaleen,
-statistical convergence, Mathematica Slovaca, 50 (1) (2000),
111-115.
[21] V. K. Rohatgi, An introduction to probability theory and mathematical statistics, Second ed, Wiley Eastern Limited.
|
Received on 20.01.2014 Accepted on 29.01.2014 © EnggResearch.net All Right Reserved Int. J. Tech. 4(1): Jan.-June. 2014; Page 181-185 |