Strikingly simple identities relating exit problems for Lévy processes under continuous and Poisson observations
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Version: author
State: Public
Version: author
Serval ID
serval:BIB_440FC41D5660
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Strikingly simple identities relating exit problems for Lévy processes under continuous and Poisson observations
Journal
Stochastic Processes and their Applications
ISSN
0304-4149
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
127
Number
2
Pages
643-656
Language
english
Abstract
We consider exit problems for general Levy processes, where the first passage over a threshold is detected either immediately or at an epoch of an independent homogeneous Poisson process. It is shown that the two corresponding one-sided problems are related through a surprisingly simple identity. Moreover, we identify a simple link between two-sided exit problems with one continuous and one Poisson exit. Finally, identities for reflected processes and a link between some Parisian type exit problems are established. For spectrally one-sided Levy processes this approach enables alternative proofs for a number of previously established identities, providing additional insight.
Keywords
Levy processes, Exit problems, Poisson observation, Occupation times, Parisian ruin
Web of science
Create date
23/06/2016 8:37
Last modification date
20/08/2019 13:48