Abstract
Let (ξ k ,F k ) be a martingale difference sequence. The paper concerns the tail behavior of the quadratic formS n = ∑ n k=1 ∑ k−1 j=1 β k−j n χ k χ j , where β n asn→∞. The main conclusions aboutP}n −1 S n >x n }, wherex n →∞, asn→∞, are obtained using the tail behavior of a martingale with values in a certain Hilbert space.
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Vilnius University, Naugarduko 24; Institute of Mathematics and Informatics, Akademijos 4, 2600 Vilnius, Lithuania. Published in Lietuvos Matematikos Rinkinys, Vol. 37, No. 4, pp. 532–549, October–December, 1997.
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Račkauskas, A. Limit theorems for large deviations probabilities of certain quadratic forms. Lith Math J 37, 402–415 (1997). https://doi.org/10.1007/BF02465581
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DOI: https://doi.org/10.1007/BF02465581