Stable processes conditioned to avoid an interval
Stable processes conditioned to avoid an interval
复制标题
稳定的进程有条件避免间隔
DOI:
10.1016/j.spa.2019.01.004
复制
发表时间:
2020
影响因子:
1.4
通讯作者:
Döring L
中科院分区:
文献类型:
--
作者:
Döring L
Conditioning Markov processes to avoid a domain is a classical problem that has been studied in many settings. Ingredients for standard arguments involve the leading order tail asymptotics of the distribution of the first hitting time of the domain of interest and its relation to an underlying harmonic function. In the present article we condition stable processes to avoid intervals. The required tail asymptotics in the stable setting for α≥ 1 go back to classical work of Blumenthal et al. and Port from the 1960s. For α< 1, we appeal to recent results centered around the so-called deep factorisation of the stable process to compute hitting probabilities and, moreover, to identify the associated harmonic functions for all α∈(0, 2). With these in hand, we thus prove that conditioning to avoid an interval is possible in the classical sense and that the resulting process is a Doob h-transform of the stable process killed on entering the aforesaid interval. Appealing to the representation of the conditioned process as a Doob h-transform, we verify that the conditioned process is transient.
登录
查看更多内容
DOI:
10.1007/978-3-319-44465-9_12
发表时间:
2015
期刊:
arXiv: Probability
影响因子:
--
作者:
C. Profeta;T. Simon
通讯作者:
T. Simon
DOI:
10.1007/bf02786681
发表时间:
1967
期刊:
Journal d’Analyse Mathématique
影响因子:
--
作者:
S. Port
通讯作者:
S. Port
DOI:
10.1214/16-aihp806
发表时间:
2015
期刊:
arXiv: Probability
影响因子:
--
作者:
A. Kyprianou;V. Rivero;Bati Sengul
通讯作者:
Bati Sengul
影响因子:
0.6
作者:
B. A. Rogozin
通讯作者:
B. A. Rogozin
影响因子:
1.4
作者:
Kyprianou A
通讯作者:
Kyprianou A