Large time asymptotic behavior for the weakly damped Jordan-Moore-Gibson-Thompson equation

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Hauptverfasser: Chen, Wenhui, Liu, Yan, Luo, Manqing
Format: Preprint
Veröffentlicht: 2026
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author Chen, Wenhui
Liu, Yan
Luo, Manqing
author_facet Chen, Wenhui
Liu, Yan
Luo, Manqing
contents This manuscript considers the Jordan-Moore-Gibson-Thompson (JMGT) equation and its linearized equation with an additional weak damping term (proposed by [B. Kaltenbacher, \emph{Inverse Problems} (2025)] firstly) in the whole space $\mathbb{R}^n$. We mainly study the unique existence and large time behavior, including optimal decay estimates and asymptotic profiles, of global in-time Sobolev solutions for any $n\geqslant 1$. This weak damping term leads to diffusion profiles in the sub-critical case $δ>0$ and regularity-loss decay properties in the critical case $δ=0$, which are greatly different from the results for the corresponding classical models without the weak damping term.
format Preprint
id arxiv_https___arxiv_org_abs_2603_26159
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Large time asymptotic behavior for the weakly damped Jordan-Moore-Gibson-Thompson equation
Chen, Wenhui
Liu, Yan
Luo, Manqing
Analysis of PDEs
This manuscript considers the Jordan-Moore-Gibson-Thompson (JMGT) equation and its linearized equation with an additional weak damping term (proposed by [B. Kaltenbacher, \emph{Inverse Problems} (2025)] firstly) in the whole space $\mathbb{R}^n$. We mainly study the unique existence and large time behavior, including optimal decay estimates and asymptotic profiles, of global in-time Sobolev solutions for any $n\geqslant 1$. This weak damping term leads to diffusion profiles in the sub-critical case $δ>0$ and regularity-loss decay properties in the critical case $δ=0$, which are greatly different from the results for the corresponding classical models without the weak damping term.
title Large time asymptotic behavior for the weakly damped Jordan-Moore-Gibson-Thompson equation
topic Analysis of PDEs
url https://arxiv.org/abs/2603.26159