Blow-up of solutions to semilinear wave equations with spatial derivatives

Fuente: arXiv
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Autores principales: Shao, Kerun, Takamura, Hiroyuki, Wang, Chengbo
Formato: Preprint
Publicado: 2024
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_version_ 1866916273751851008
author Shao, Kerun
Takamura, Hiroyuki
Wang, Chengbo
author_facet Shao, Kerun
Takamura, Hiroyuki
Wang, Chengbo
contents For small-amplitude semilinear wave equations with power type nonlinearity on the first-order spatial derivative, the expected sharp upper bound on the lifespan of solutions is obtained for both critical cases and subcritical cases, for all spatial dimensions $n>1$. It is achieved uniformly by constructing the integral equations, deriving the ordinary differential inequality system, and iteration argument. Combined with the former works, the sharp lifespan estimates for this problem are completely established, at least for the spherical symmetric case.
format Preprint
id arxiv_https___arxiv_org_abs_2406_02098
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Blow-up of solutions to semilinear wave equations with spatial derivatives
Shao, Kerun
Takamura, Hiroyuki
Wang, Chengbo
Analysis of PDEs
35L05, 35L71, 35B30, 35B33, 35B44
For small-amplitude semilinear wave equations with power type nonlinearity on the first-order spatial derivative, the expected sharp upper bound on the lifespan of solutions is obtained for both critical cases and subcritical cases, for all spatial dimensions $n>1$. It is achieved uniformly by constructing the integral equations, deriving the ordinary differential inequality system, and iteration argument. Combined with the former works, the sharp lifespan estimates for this problem are completely established, at least for the spherical symmetric case.
title Blow-up of solutions to semilinear wave equations with spatial derivatives
topic Analysis of PDEs
35L05, 35L71, 35B30, 35B33, 35B44
url https://arxiv.org/abs/2406.02098