Characteristics of the switch process and geometric divisibility
(2023) In Journal of Applied Probability p.1-8- Abstract
- The switch process alternates independently between 1 and −1
, with the first switch to 1 occurring at the origin. The expected value function of this process is defined uniquely by the distribution of switching times. The relation between the two is implicitly described through the Laplace transform, which is difficult to use for determining if a given function is the expected value function of some switch process. We derive an explicit relation under the assumption of monotonicity of the expected value function. It is shown that geometric divisible switching time distributions correspond to a non-negative decreasing expected value function. Moreover, an explicit relation between the expected value of a switch process and the... (More) - The switch process alternates independently between 1 and −1
, with the first switch to 1 occurring at the origin. The expected value function of this process is defined uniquely by the distribution of switching times. The relation between the two is implicitly described through the Laplace transform, which is difficult to use for determining if a given function is the expected value function of some switch process. We derive an explicit relation under the assumption of monotonicity of the expected value function. It is shown that geometric divisible switching time distributions correspond to a non-negative decreasing expected value function. Moreover, an explicit relation between the expected value of a switch process and the autocovariance function of the switch process stationary counterpart is obtained, leading to a new interpretation of the classical Pólya criterion for positive-definiteness. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/01a4c6ae-aa7e-40d8-8e14-57de9ccffa0d
- author
- Bengtsson, Henrik LU
- organization
- publishing date
- 2023-11-06
- type
- Contribution to journal
- publication status
- epub
- subject
- keywords
- Renewal theory, geometric divisibility, binary processes
- in
- Journal of Applied Probability
- pages
- 1 - 8
- publisher
- Applied Probability Trust
- external identifiers
-
- scopus:85176363669
- ISSN
- 1475-6072
- DOI
- 10.1017/jpr.2023.81
- project
- Excursion sets for stochastic processes
- language
- English
- LU publication?
- yes
- id
- 01a4c6ae-aa7e-40d8-8e14-57de9ccffa0d
- date added to LUP
- 2023-12-08 11:49:35
- date last changed
- 2023-12-09 04:01:47
@article{01a4c6ae-aa7e-40d8-8e14-57de9ccffa0d,
abstract = {{The switch process alternates independently between 1 and −1<br/> , with the first switch to 1 occurring at the origin. The expected value function of this process is defined uniquely by the distribution of switching times. The relation between the two is implicitly described through the Laplace transform, which is difficult to use for determining if a given function is the expected value function of some switch process. We derive an explicit relation under the assumption of monotonicity of the expected value function. It is shown that geometric divisible switching time distributions correspond to a non-negative decreasing expected value function. Moreover, an explicit relation between the expected value of a switch process and the autocovariance function of the switch process stationary counterpart is obtained, leading to a new interpretation of the classical Pólya criterion for positive-definiteness.}},
author = {{Bengtsson, Henrik}},
issn = {{1475-6072}},
keywords = {{Renewal theory; geometric divisibility; binary processes}},
language = {{eng}},
month = {{11}},
pages = {{1--8}},
publisher = {{Applied Probability Trust}},
series = {{Journal of Applied Probability}},
title = {{Characteristics of the switch process and geometric divisibility}},
url = {{http://dx.doi.org/10.1017/jpr.2023.81}},
doi = {{10.1017/jpr.2023.81}},
year = {{2023}},
}