A New Shape of Extremal Clusters For Certain Stationary Semi-Exponential Processes With Moderate Long Range Dependence
Autor: | Chen, Zaoli, Samorodnitsky, Gennady |
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Rok vydání: | 2021 |
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Druh dokumentu: | Working Paper |
Popis: | Extremal clusters of stationary processes with long memory can be quite intricate. For certain stationary infinitely divisible processes with subexponential tails, including both power-like tails and certain lighter tails, e.g. lognormal-like tails, such clusters may take the shape of stable regenerative sets. In this paper we show that for semi-exponential tails, which are even lighter, a new shape of extremal clusters arises. In this case each stable regenerative set supports a random panoply of varying extremes. Comment: 41 pages |
Databáze: | arXiv |
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