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Martingale approximation of non-stationary stochastic processes
Published 6 Nov 2023 in math.PR | (2311.03134v1)
Abstract: We generalise the martingale-coboundary representation of discrete time stochastic processes to the non-stationary case and to random variables in Orlicz spaces. Related limit theorems (CLT, invariance principle, log log law, probabilities of large deviations) are studied.
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