Abstract
We study the persistence probability for some two-sided, discrete-time Gaussian sequences that are discrete-time analogues of fractional Brownian motion and integrated fractional Brownian motion, respectively. Our results extend the corresponding ones in continuous time in Molchan (Commun Math Phys 205(1):97–111, 1999) and Molchan (J Stat Phys 167(6):1546–1554, 2017) to a wide class of discrete-time processes.
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Aurzada, F., Buck, M. Persistence Probabilities of Two-Sided (Integrated) Sums of Correlated Stationary Gaussian Sequences. J Stat Phys 170, 784–799 (2018). https://doi.org/10.1007/s10955-018-1954-8
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DOI: https://doi.org/10.1007/s10955-018-1954-8