A general and sharp regularity condition for integro-differential equations with non-dominated measures

Fuente: arXiv
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Main Author: Saplaouras, Alexandros
Format: Preprint
Published: 2024
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_version_ 1866910367302549504
author Saplaouras, Alexandros
author_facet Saplaouras, Alexandros
contents The aim of this work is to present the regularity condition (also known in the literature as structure condition) an integro-differential operator may satisfy in order for the domination principle to hold for (sub-,super-) solutions of polynomial growth. More precisely, the framework presented in Hollender [13], in which power functions are used in order to determine the integrability conditions, is weakened by substituting the power functions with Young functions. The use of Young functions allows for sharp integrability conditions, which are crucial when one deals with limit theorems. As an immediate application, it is considered the case of parabolic Hamilton-Jacobi-Bellman (HJB) operators, for which the regularity condition is satisfied and, consequently, the comparison principle as well. The parabolic HJB operator presented in this work can be associated to second-order (decoupled) forward-backward stochastic differential equations with jumps.
format Preprint
id arxiv_https___arxiv_org_abs_2403_09540
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A general and sharp regularity condition for integro-differential equations with non-dominated measures
Saplaouras, Alexandros
Analysis of PDEs
Probability
35B51, 35D40, 35J15, 35J60, 35K15, 35K55, 35K58, 47G20
The aim of this work is to present the regularity condition (also known in the literature as structure condition) an integro-differential operator may satisfy in order for the domination principle to hold for (sub-,super-) solutions of polynomial growth. More precisely, the framework presented in Hollender [13], in which power functions are used in order to determine the integrability conditions, is weakened by substituting the power functions with Young functions. The use of Young functions allows for sharp integrability conditions, which are crucial when one deals with limit theorems. As an immediate application, it is considered the case of parabolic Hamilton-Jacobi-Bellman (HJB) operators, for which the regularity condition is satisfied and, consequently, the comparison principle as well. The parabolic HJB operator presented in this work can be associated to second-order (decoupled) forward-backward stochastic differential equations with jumps.
title A general and sharp regularity condition for integro-differential equations with non-dominated measures
topic Analysis of PDEs
Probability
35B51, 35D40, 35J15, 35J60, 35K15, 35K55, 35K58, 47G20
url https://arxiv.org/abs/2403.09540