Conditioned real self-similar Markov processes
Conditioned real self-similar Markov processes
复制标题
条件实自相似马尔可夫过程
DOI:
10.1016/j.spa.2018.04.001
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发表时间:
2019
影响因子:
1.4
通讯作者:
Kyprianou A
中科院分区:
文献类型:
--
作者:
Kyprianou A
In recent work, Chaumont et al.(2013) showed that is possible to condition a stable process with index α∈(1, 2) to avoid the origin. Specifically, they describe a new Markov process which is the Doob h-transform of a stable process and which arises from a limiting procedure in which the stable process is conditioned to have avoided the origin at later and later times. A stable process is a particular example of a real self-similar Markov process (rssMp) and we develop the idea of such conditionings further to the class of rssMp. Under appropriate conditions, we show that the specific case of conditioning to avoid the origin corresponds to a classical Cramér–Esscher-type transform to the Markov Additive Process (MAP) that underlies the Lamperti–Kiu representation of a rssMp. In the same spirit, we show that the notion of conditioning a rssMp to continuously absorb at the origin also fits the same mathematical framework. In particular, we characterise the stable process conditioned to continuously absorb at the origin when α∈(0, 1). Our results also complement related work for positive self-similar Markov processes in Chaumont and Rivero (2007).
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DOI:
10.1214/aoms/1177697131
发表时间:
1970
期刊:
--
影响因子:
--
作者:
H. Dym
通讯作者:
H. Dym
影响因子:
1.4
作者:
O. Chybiryakov
通讯作者:
O. Chybiryakov
影响因子:
1.5
作者:
V. Rivero
通讯作者:
V. Rivero
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/bf00533480
发表时间:
1973
期刊:
Zeitschrift für Wahrscheinlichkeitstheorie und Verwandte Gebiete
影响因子:
--
作者:
E. Arjas;T. Speed
通讯作者:
T. Speed