$L_p$-estimates for nonlocal equations with general Lévy measures

Fuente: arXiv
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Autori principali: Dong, Hongjie, Ryu, Junhee
Natura: Preprint
Pubblicazione: 2025
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author Dong, Hongjie
Ryu, Junhee
author_facet Dong, Hongjie
Ryu, Junhee
contents We consider nonlocal operators of the form \begin{equation*} L_t u(x) = \int_{\mathbb{R}^d} \left( u(x+y)-u(x)-\nabla u(x)\cdot y^{(σ)} \right) ν_t(dy), \end{equation*} where $ν_t$ is a general Lévy measure of order $σ\in(0,2)$. We allow this class of Lévy measures to be very singular and impose no regularity assumptions in the time variable. Continuity of the operators and the unique strong solvability of the corresponding nonlocal parabolic equations in $L_p$ spaces are established. We also demonstrate that, depending on the ranges of $σ$ and $d$, the operator can or cannot be treated in weighted mixed-norm spaces.
format Preprint
id arxiv_https___arxiv_org_abs_2512_24704
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle $L_p$-estimates for nonlocal equations with general Lévy measures
Dong, Hongjie
Ryu, Junhee
Analysis of PDEs
35B65, 35R11, 45K05, 47G20
We consider nonlocal operators of the form \begin{equation*} L_t u(x) = \int_{\mathbb{R}^d} \left( u(x+y)-u(x)-\nabla u(x)\cdot y^{(σ)} \right) ν_t(dy), \end{equation*} where $ν_t$ is a general Lévy measure of order $σ\in(0,2)$. We allow this class of Lévy measures to be very singular and impose no regularity assumptions in the time variable. Continuity of the operators and the unique strong solvability of the corresponding nonlocal parabolic equations in $L_p$ spaces are established. We also demonstrate that, depending on the ranges of $σ$ and $d$, the operator can or cannot be treated in weighted mixed-norm spaces.
title $L_p$-estimates for nonlocal equations with general Lévy measures
topic Analysis of PDEs
35B65, 35R11, 45K05, 47G20
url https://arxiv.org/abs/2512.24704