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Large Deviations for Point Processes Based on Stationary Sequences with Heavy Tails

Published online by Cambridge University Press:  14 July 2016

Henrik Hult*
Affiliation:
KTH
Gennady Samorodnitsky*
Affiliation:
Cornell University
*
Postal address: Department of Mathematics, KTH, SE-100 44 Stockholm, Sweden. Email address: hult@kth.se
∗∗Postal address: School of Operations Research and Industrial Engineering, Cornell University, 220 Rhodes Hall, Ithaca, NY 14853, USA. Email address: gennady@orie.cornell.edu
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Abstract

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In this paper we propose a framework that facilitates the study of large deviations for point processes based on stationary sequences with regularly varying tails. This framework allows us to keep track both of the magnitude of the extreme values of a process and the order in which these extreme values appear. Particular emphasis is put on (infinite) linear processes with random coefficients. The proposed framework provides a fairly complete description of the joint asymptotic behavior of the large values of the stationary sequence. We apply the general result on large deviations for point processes to derive the asymptotic decay of certain probabilities related to partial sum processes as well as ruin probabilities.

Type
Research Article
Copyright
Copyright © Applied Probability Trust 2010 

Footnotes

Research partially supported by the Swedish Research Council.

Research partially supported by NSA grant H98230-06-1-0069 and ARO grant W911NF-07-1-0078 at Cornell University.

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