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Extremes of moving averages and moving maxima on a regular lattice (CROSBI ID 201319)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Basrak, Bojan ; Tafro, Azra Extremes of moving averages and moving maxima on a regular lattice // Probability and Mathematical Statistics-Poland, 34 (2014), 1; 61-79

Podaci o odgovornosti

Basrak, Bojan ; Tafro, Azra

engleski

Extremes of moving averages and moving maxima on a regular lattice

We study the extremal behaviour of spatial moving averages and moving maxima on a regular discrete grid. Our main assumption is that these random fields are stationary and regularly varying. Using the asymptotic theory for point processes we characterize the limiting behavior of their extremes over an increasing grid. Our approach builds on the results of Davis and Resnick concerning linear processes. In analogy to the analysis of time series data, an appropriate Hill estimator of the tail index can be defined. We exhibit a sufficient condition for the consistency of this estimator in a certain class of spatial lattice models. Finally, we show that this condition holds for the models in our title.

regular variation ; point processes ; stationary random fields ; regular grid ; extreme value theory

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Podaci o izdanju

34 (1)

2014.

61-79

objavljeno

0208-4147

Povezanost rada

Matematika

Indeksiranost