Records from stationary observations subject to a random trend
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2015Metadata
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Gouet Bañares, Raúl
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Records from stationary observations subject to a random trend
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We prove strong convergence and asymptotic normality for the record and the weak record rate of observations of the form Y-n = X-n + T-n, n >= 1, where (X-n)(n is an element of z) is a stationary ergodic sequence of random variables and (T-n)(n >= 1) is a stochastic trend process with stationary ergodic increments. The strong convergence result follows from the Dubins-Freedman law of large numbers and Birkhoff's ergodic theorem. For the asymptotic normality we rely on the approach of Ballerini and Resnick (1987), coupled with a moment bound for stationary sequences, which is used to deal with the random trend process. Examples of applications are provided. In particular, we obtain strong convergence and asymptotic normality for the number of ladder epoch in a random walk with stationary ergodic increments.
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1120408
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URI: https://repositorio.uchile.cl/handle/2250/137185
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Advances in Applied Probability Volumen: 47 Número: 4 Páginas: 1175-1189 (2015)
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