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Perturbation of an α-stable type stochastic process by a pseudo-gradient
Volume 12, Issue 1 (2025), pp. 1–25
Mykola Boiko   Mykhailo Osypchuk ORCID icon link to view author Mykhailo Osypchuk details  

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https://doi.org/10.15559/24-VMSTA259
Pub. online: 25 June 2024      Type: Research Article      Open accessOpen Access

Received
25 June 2023
Revised
18 May 2024
Accepted
25 May 2024
Published
25 June 2024

Abstract

A Markov process defined by some pseudo-differential operator of an order $1\lt \alpha \lt 2$ as the process generator is considered. Using a pseudo-gradient operator, that is, the operator defined by the symbol $i\lambda |\lambda {|^{\beta -1}}$ with some $0\lt \beta \lt 1$, the perturbation of the Markov process under consideration by the pseudo-gradient with a multiplier, which is integrable at some large enough power, is constructed. Such perturbation defines a family of evolution operators, properties of which are investigated. A corresponding Cauchy problem is considered.

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Keywords
α-stable process perturbation pseudo-gradient pseudo-process

MSC2010
60G52

Funding
This research was partially funded by the Ministry of Education and Science of Ukraine: project 0123U101791 “Study of algebras generated by symmetric polynomial and rational mappings in Banach spaces.”

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