scholarly journals A Cramér Type Theorem for Weighted Random Variables

2002 ◽  
Vol 7 (0) ◽  
Author(s):  
Jamal Najim
Author(s):  
JANUSZ WYSOCZAŃSKI

We show how the construction of t-transformation can be applied to the construction of a sequence of monotonically independent noncommutative random variables. We introduce the weakly monotone Fock space, on which these operators act. This space can be derived in a natural way from the papers by Pusz and Woronowicz on twisted second quantization. It was observed by Bożejko that, by taking μ = 0, for the μ-CAR relations one obtains the Muraki's monotone Fock space, while for the μ-CCR relations one obtains the weakly monotone Fock space. We show that the direct proof of the central limit theorem for these operators provides an interesting recurrence for the highest binomial coefficients. Moreover, we show the Poisson type theorem for these noncommutative random variables.


2008 ◽  
Vol 347 (2) ◽  
pp. 407-415 ◽  
Author(s):  
Ricardo Vélez Ibarrola ◽  
Tomás Prieto-Rumeau

Symmetry ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2258
Author(s):  
Piotr Nowak ◽  
Olgierd Hryniewicz

Baoding Liu created uncertainty theory to describe the information represented by human language. In turn, Yuhan Liu founded chance theory for modelling phenomena where both uncertainty and randomness are present. The first theory involves an uncertain measure and variable, whereas the second one introduces the notions of a chance measure and an uncertain random variable. Laws of large numbers (LLNs) are important theorems within both theories. In this paper, we prove a law of large numbers (LLN) for uncertain random variables being continuous functions of pairwise independent, identically distributed random variables and regular, independent, identically distributed uncertain variables, which is a generalisation of a previously proved version of LLN, where the independence of random variables was assumed. Moreover, we prove the Marcinkiewicz–Zygmund type LLN in the case of uncertain random variables. The proved version of the Marcinkiewicz–Zygmund type theorem reflects the difference between probability and chance theory. Furthermore, we obtain the Chow type LLN for delayed sums of uncertain random variables and formulate counterparts of the last two theorems for uncertain variables. Finally, we provide illustrative examples of applications of the proved theorems. All the proved theorems can be applied for uncertain random variables being functions of symmetrically or asymmetrically distributed random variables, and symmetrical or asymmetrical uncertain variables. Furthermore, in some special cases, under the assumption of symmetry of the random and uncertain variables, the limits in the first and the third theorem have forms of symmetrical uncertain variables.


2020 ◽  
pp. 124-136
Author(s):  
Степан Алексеевич Рогонов ◽  
Илья Сергеевич Солдатенко

В работе исследуется способ идентификации методом Монте-Карло распределений нечетких случайных величин, в параметрическом задании которых присутствует функция максимума от взвешенных случайных величин. In this paper, we study a method for identifying by the Monte Carlo method distributions of fuzzy random variables, in the parametric setting of which there is a maximum function of weighted random variables.


2011 ◽  
Vol 25 (2) ◽  
pp. 237-250 ◽  
Author(s):  
Xiaohu Li ◽  
Shuhong Zhang

This article deals with Rényi entropies for the residual life and the inactivity time. Monotonic properties of the entropy in order statistics, record values, and weighted distributions are investigated, and the comparison on weighted random variables is studied in terms of residual Rényi entropy as well.


1975 ◽  
Vol 18 (2) ◽  
pp. 291-293 ◽  
Author(s):  
D. R. Beuerman

AbstractLet X1, X2, X3 … be i.i.d., Sn their nth partial sum with Sn = 0; Suppose that


Author(s):  
Zbigniew Łagodowski

Let  \(\{ X_{\bf n}, {\bf n}\in \mathbb{N}^d \}\) be a random field of negatively dependent  random variables.  The complete  convergence results for negatively dependent  random fields  are refined. To obtain the main theorem several lemmas  for convergence of families indexed by \(\mathbb{N}^d\)   have been proved. Auxiliary lemmas have wider application to study  the random walks on the lattice.


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