Electron. J. Differential Equations, Vol. 2025 (2025), No. 71, pp. 1-12.

Global existence and blow-up for the viscoelastic damped wave equation on the Heisenberg group

Xingquan Li, Yuli Feng, Han Yang

Abstract:
The purpose of this article is to study the Cauchy problem for the viscoelastic damped wave equation on the Heisenberg group. We first prove the global existence of small data solutions for \(p\in [2,Q/(Q-4)]\) if \(n=2,3\), \(p>2\) if \(n=1 \) using the contraction principle. Then, a blow-up result is obtained by using the test function method under certain integral sign assumptions for the Cauchy data when \(1< p\leq1+2/(Q-1)\), where \(Q=2n+2\) is the homogeneous dimension of the Heisenberg group. Moreover, we obtain the upper bound for the lifespan of the solution by employing a revisited test function method.

Submitted March 24, 2025. Published July 14, 2025.
Math Subject Classifications: 35A01, 35B44, 35R03.
Key Words: Viscoelastic damped wave equation; Heisenberg group; test function method; global existence; blow up.
DOI: 10.58997/ejde.2025.71

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Xingquan Li
School of Mathematics
Southwest Jiaotong University
Chengdu 611756, China
email: lixingquan@my.swjtu.edu.cn
Yuli Feng
School of Mathematics
Southwest Jiaotong University
Chengdu 611756, China
email: fyl@my.swjtu.edu.cn
Han Yang
School of Mathematics
Southwest Jiaotong University University
Chengdu 611756, China
email: hanyang95@263.net

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