Geodesic
High excursions of a~quadratic form for a~Gaussian stationary vector process
Fundamentalʹnaâ i prikladnaâ matematika, Tome 23 (2020) no. 1, pp. 123-144.

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Exact asymptotic behavior is given for high excursion probabilities of a quadratic form for a zero-mean Gaussian stationary vector process with Pickands' type covariance matrix in the vicinity of zero. The case of a quadratic form with a positive maximum eigenvalue of order 1 is considered. 
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A. I. Zhdanov. High excursions of a~quadratic form for a~Gaussian stationary vector process. Fundamentalʹnaâ i prikladnaâ matematika, Tome 23 (2020) no. 1, pp. 123-144. http://geodesic.mathdoc.fr/item/FPM_2020_23_1_a6/

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