ITO EXCURSION THEORY FOR SELF-SIMILAR MARKOV-PROCESSES

成果类型:
Article
署名作者:
VUOLLEAPIALA, J
刊物名称:
ANNALS OF PROBABILITY
ISSN/ISSBN:
0091-1798
DOI:
10.1214/aop/1176988721
发表日期:
1994
页码:
546-565
关键词:
摘要:
Let X(t) be an alpha-self-similar Markov process on (0, infinity) killed when hitting 0. Alpha-self-similar extensions of X(t) to [0, infinity) are studied via Ito execusion theory (entrance laws). We give a condition that guarantees the existence of an extension, which either leaves 0 continuously (a.s.) or (a.s.) jumps from 0 to (0, infinity) according to the ''jumping in'' measure eta(dx) = dx/x(beta+1). Two applications are given: the diffusion case and the ''reflecting barrier process'' of S. Watanabe.