Markov additive friendships

Fuente: arXiv
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Main Authors: Döring, Leif, Trottner, Lukas, Watson, Alexander R.
Format: Preprint
Published: 2023
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_version_ 1866909347030761472
author Döring, Leif
Trottner, Lukas
Watson, Alexander R.
author_facet Döring, Leif
Trottner, Lukas
Watson, Alexander R.
contents The Wiener--Hopf factorisation of a Lévy or Markov additive process describes the way that it attains new maxima and minima in terms of a pair of so-called ladder height processes. Vigon's theory of friendship for Lévy processes addresses the inverse problem: when does a process exist which has certain prescribed ladder height processes? We give a complete answer to this problem for Markov additive processes, provide simpler sufficient conditions for constructing processes using friendship, and address in part the question of the uniqueness of the Wiener--Hopf factorisation for Markov additive processes.
format Preprint
id arxiv_https___arxiv_org_abs_2308_09432
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Markov additive friendships
Döring, Leif
Trottner, Lukas
Watson, Alexander R.
Probability
60G51, 60J25, 47A68
The Wiener--Hopf factorisation of a Lévy or Markov additive process describes the way that it attains new maxima and minima in terms of a pair of so-called ladder height processes. Vigon's theory of friendship for Lévy processes addresses the inverse problem: when does a process exist which has certain prescribed ladder height processes? We give a complete answer to this problem for Markov additive processes, provide simpler sufficient conditions for constructing processes using friendship, and address in part the question of the uniqueness of the Wiener--Hopf factorisation for Markov additive processes.
title Markov additive friendships
topic Probability
60G51, 60J25, 47A68
url https://arxiv.org/abs/2308.09432