On the local well-posedness of randomly forced reaction-diffusion equations with $L^2$ initial data and a superlinear reaction term

Fuente: arXiv
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Main Authors: Foondun, Mohammud, Khoshnevisan, Davar, Nualart, Eulalia
Format: Preprint
Published: 2025
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author Foondun, Mohammud
Khoshnevisan, Davar
Nualart, Eulalia
author_facet Foondun, Mohammud
Khoshnevisan, Davar
Nualart, Eulalia
contents We consider a parabolic stochastic partial differential equation (SPDE) on $[0\,,1]$ that is forced with multiplicative space-time white noise with a bounded and Lipschitz diffusion coefficient and a drift coefficient that is locally Lipschitz and satisfies an $L\log L$ growth condition. We prove that the SPDE is well posed when the initial data is in $L^2[0\,,1]$. This solves a strong form of an open problem.
format Preprint
id arxiv_https___arxiv_org_abs_2510_00214
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the local well-posedness of randomly forced reaction-diffusion equations with $L^2$ initial data and a superlinear reaction term
Foondun, Mohammud
Khoshnevisan, Davar
Nualart, Eulalia
Probability
We consider a parabolic stochastic partial differential equation (SPDE) on $[0\,,1]$ that is forced with multiplicative space-time white noise with a bounded and Lipschitz diffusion coefficient and a drift coefficient that is locally Lipschitz and satisfies an $L\log L$ growth condition. We prove that the SPDE is well posed when the initial data is in $L^2[0\,,1]$. This solves a strong form of an open problem.
title On the local well-posedness of randomly forced reaction-diffusion equations with $L^2$ initial data and a superlinear reaction term
topic Probability
url https://arxiv.org/abs/2510.00214