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A pursuit problem for squared Bessel processes

delete2025-12-23
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P
Profeta, Christophe *
DOI:10.1051/ps/2025014delete
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Abstract

Abstract

En 中文
In this note, we are interested in the probability that two independent squared Bessel processes do not cross for a long time. We show that this probability has a power decay which is given by the first zero of some hypergeometric function. We also compute along the way the distribution of the location where the crossing eventually occurs.
Keywords:
Bessel process
persistence probability
first passage time

Journal

E
ESAIM-PROBABILITY AND STATISTICS
IF:
0.7
Papers:
11
Citations:
0

Organization

U
universite paris saclay
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1.7K
Papers: 737
Citations: 0