Convergence of randomly weighted sums of Banach space valued random elements and uniform integrability concerning the random weights

2001 ◽  
Vol 51 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Tien-Chung Hu ◽  
Manuel Ordóñez Cabrera ◽  
Andrei I. Volodin
Keyword(s):  
Banach Space ◽  
Weighted Sums ◽  
Uniform Integrability ◽  
Randomly Weighted Sums ◽  
Random Weights ◽  
Random Elements

scholarly journals Stability for randomly weighted sums of random elements

1999 ◽  
Vol 22 (3) ◽  
pp. 559-568 ◽  
Author(s):  
Tien-Chung Hu ◽  
Hen-Chao Chang
Keyword(s):  
Banach Space ◽  
Separable Banach Space ◽  
Sufficient Conditions ◽  
Random Variables ◽  
Necessary And Sufficient Conditions ◽  
Weighted Sums ◽  
Randomly Weighted Sums ◽  
Random Elements ◽  
Necessary And Sufficient

Let{Xn:n=1,2,3,…}be a sequence of i.i.d. random elements taking values in a separable Banach space of typepand let{An,i:i=1,2,3,…;n=1,2,3,…}be an array of random variables. In this paper, under various assumptions of{An,i}, the necessary and sufficient conditions for∑i=1∞An,iXi→0a.s. are obtained. Also, the necessity of the assumptions of{An,i}is discussed.

scholarly journals Convergence in mean of weighted sums of {an,k}-compactly uniformly integrable random elements in Banach spaces

1997 ◽  
Vol 20 (3) ◽  
pp. 443-450 ◽  
Author(s):  
M. Ordóñez Cabrera
Keyword(s):  
Banach Space ◽  
Recent Result ◽  
Banach Spaces ◽  
Separable Banach Space ◽  
Weighted Sums ◽  
Uniform Integrability ◽  
Weighted Sum ◽  
Random Elements ◽  
New Hypothesis ◽  
Convergence In Mean

The convergence in mean of a weighted sum∑kank(Xk−EXk)of random elements in a separable Banach space is studied under a new hypothesis which relates the random elements with their respective weights in the sum: the{ank}-compactly uniform integrability of{Xn}. This condition, which is implied by the tightness of{Xn}and the{ank}-uniform integrability of{‖Xn‖}, is weaker than the compactly miform integrability of{Xn}and leads to a result of convergence in mean which is strictly stronger than a recent result of Wang, Rao and Deli.

Some mean convergence theorems for weighted sums of Banach space valued random elements

Stochastics ◽  
2021 ◽  
pp. 1-19
Author(s):  
Pingyan Chen ◽  
Manuel Ordóñez Cabrera ◽  
Andrew Rosalsky ◽  
Andrei Volodin
Keyword(s):  
Banach Space ◽  
Weighted Sums ◽  
Convergence Theorems ◽  
Mean Convergence ◽  
Random Elements

On the rate of complete convergence for weighted sums of arrays of Banach space valued random elements

2002 ◽  
Vol 47 (3) ◽  
pp. 533-547 ◽  
Author(s):  
Tien-Chung Hu ◽  
Tien-Chung Hu ◽  
Deli Li ◽  
Deli Li ◽  
Andrew Rosalsky ◽  
...  
Keyword(s):  
Banach Space ◽  
Complete Convergence ◽  
Weighted Sums ◽  
Random Elements
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