Extremes of Subexponential Lévy-driven Random Fields in the Gumbel Domain of Attraction

Mads Stehr*, Anders Rønn-Nielsen

*Corresponding author af dette arbejde

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Abstract

We consider a spatial Lévy-driven moving average with an underlying Lévy measure having a subexponential right tail, which is also in the maximum domain of attraction of the Gumbel distribution. Assuming that the left tail is not heavier than the right tail, and that the integration kernel satisfies certain regularity conditions, we show that the supremum of the field over any bounded set has a right tail equivalent to that of the Lévy measure. Furthermore, for a very general class of expanding index sets, we show that the running supremum of the field, under a suitable scaling, converges to the Gumbel distribution.
OriginalsprogEngelsk
TidsskriftExtremes
Vol/bind25
Udgave nummer1
Sider (fra-til)79–105
Antal sider27
ISSN1386-1999
DOI
StatusUdgivet - mar. 2022

Bibliografisk note

Published online: 11 September 2021.

Emneord

  • Extreme value theory
  • Lévy-based modeling
  • Geometric probability
  • Subexponential distribution
  • Random fields

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