Título inglés | Extremes of periodic moving averages of random variables with regularly varying tail probabilities. |
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Título español | Extremos de medias móviles periódicas de variables aleatorias con probabilidades de cola de variación regular. |
Autor/es | Martins, Ana Paula ; Ferreira, Helena |
Organización | Dep. Mat. Cent. Mat. Univ. Beira Inter., Covilha, Portugal |
Revista | 1696-2281 |
Publicación | 2004, 28 (2): 161-176, 9 Ref. |
Tipo de documento | articulo |
Idioma | Inglés |
Resumen inglés | We define a family of local mixing conditions that enable the computation of the extremal index of periodic sequences from the joint distributions of k consecutive variables of the sequence. By applying results, under local and global mixing conditions, to the (2m - 1)-dependent periodic sequence Xn(m) = Σj=-mm-1 cjZn-j, n ≥ 1, we compute the extremal index of the periodic moving average sequence Xn = Σj=-∞∞ cjZn-j, n ≥ 1, of random variables with regularly varying tail probabilities. This paper generalizes the theory for extremes of stationary moving averages with regularly varying tail probabilities. |
Clasificación UNESCO | 120911 |
Palabras clave español | Procesos estocásticos ; Series temporales ; Teoría de valores extremos |
Código MathReviews | MR2116189 |
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