Traditional techniques to prove some limit theorems for fuzzy random variables

In the last years, some limit theorems for fuzzy random variables have been proven by means of different techniques developed for this purpose. In this work we deal with the cadlag representation of a kind of fuzzy sets to show that these limit results can be also proved by applying well-known techniques in Probability Theory (specifically, the ones which make valid the analogous theorems for D[0, 1]-valued random elements). In this context, we will study a strong law of large numbers (whose proof will suggest a characterization of the uniform convergence) and a strong law of the iterated logarithm. Furthermore, we will check the relationships between these techniques and the ones used by Molchanov to prove a SLLN for the same random elements.

[1]  A. Beck Probability in Banach Spaces III , 1976 .

[2]  P. Billingsley,et al.  Convergence of Probability Measures , 1970, The Mathematical Gazette.

[3]  M. Puri,et al.  Fuzzy Random Variables , 1986 .

[4]  Ilya Molchanov On strong laws of large numbers for random upper semicontinuous functions , 1999 .

[5]  N. N. Lyashenko,et al.  Limit theorems for sums of independent, compact, random subsets of euclidean space , 1982 .

[6]  Ana Colubi,et al.  A method to derive strong laws of large numbers for random upper semicontinuous functions , 2001 .

[7]  Marjorie G. Hahn,et al.  Limit theorems for random sets: An application of probability in banach space results , 1983 .

[8]  M. Puri,et al.  Limit theorems for fuzzy random variables , 1986, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[9]  R. Aumann INTEGRALS OF SET-VALUED FUNCTIONS , 1965 .

[10]  Miguel López-Díaz,et al.  Approximating Integrably Bounded Fuzzy Random Variable Sin Terms of the "Generalized" Hausdorff Metric , 1998, Inf. Sci..

[11]  G. Debreu Integration of correspondences , 1967 .

[12]  Z. Artstein,et al.  CONVEXIFICATION IN LIMIT LAWS OF RANDOM SETS IN BANACH SPACES , 1985 .

[13]  M L Puri,et al.  DIFFÉRENTIELLE D'UNE FONCTION FLOUE , 1981 .

[14]  Fumio Hiai,et al.  Convergence of conditional expectations and strong laws of large numbers for multivalued random variables , 1985 .

[15]  Ana Colubi,et al.  A generalized strong law of large numbers , 1999 .

[16]  P. Daffer,et al.  Laws of Large Numbers for $D\lbrack0, 1\rbrack$ , 1979 .

[17]  Ana Colubi,et al.  A _{}[0,1] representation of random upper semicontinuous functions , 2002 .