Sharp Conditions for the CLT of Linear Processes in a Hilbert Space |
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Authors: | Florence Merlevède Magda Peligrad Sergey Utev |
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Abstract: | In this paper we study the behavior of sums of a linear process
associated to a strictly stationary sequence
with values in a real separable Hilbert space and
are linear operators from H to H. One of the results is that
satisfies the CLT provided
are i.i.d. centered having finite second moments and
. We shall provide an example which shows that the condition on the operators is essentially sharp. Extensions of this result are given for sequences of weak dependent random variables
under minimal conditions. |
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Keywords: | Central limit theorem linear process in Hilbert space |
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