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arXiv 1601.07075math.AP
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具有双曲动力边界条件、内部和边界阻尼及超临界源的wave equation

On the wave equation with hyperbolic dynamical boundary conditions, interior and boundary damping and supercritical sources

Enzo Vitillaro

摘要:

本文的目的是研究问题$$ \begin{cases} u_{tt}-Δu+P(x,u_t)=f(x,u) \qquad &\text{in $(0,\infty)\timesΩ$,} u=0 &\text{on $(0,\infty)\times Γ_0$,} u_{tt}+\partial_νu-Δ_Γu+Q(x,u_t)=g(x,u)\qquad &\text{on $(0,\infty)\times Γ_1$,} u(0,x)=u_0(x),\quad u_t(0,x)=u_1(x) & \text{in $\barΩ$,} \end{cases}$$其中$Ω$是$\mathbb{R}^N$的有界开$C^1$子集,$N\ge 2$,$Γ=\partialΩ$,$(Γ_0,Γ_1)$是$Γ$的可测划分,$Δ_Γ$表示$Γ$上的Laplace-Beltrami算子,$ν$是$Ω$的外法线,$P$和$Q$表示非线性阻尼项,而$f$和$g$是非线性源,或者说水槽本文建立了当源项可以是超临界或超超临界时的局部性、存在性、唯一性和Hadamard适定性。

英文摘要:

The aim of the paper is to study the problem $$ \begin{cases} u_{tt}-Δu+P(x,u_t)=f(x,u) \qquad &\text{in $(0,\infty)\timesΩ$,} u=0 &\text{on $(0,\infty)\times Γ_0$,} u_{tt}+\partial_νu-Δ_Γu+Q(x,u_t)=g(x,u)\qquad &\text{on $(0,\infty)\times Γ_1$,} u(0,x)=u_0(x),\quad u_t(0,x)=u_1(x) & \text{in $\barΩ$,} \end{cases}$$ where $Ω$ is a bounded open $C^1$ subset of $\mathbb{R}^N$, $N\ge 2$, $Γ=\partialΩ$, $(Γ_0,Γ_1)$ is a measurable partition of $Γ$, $Δ_Γ$ denotes the Laplace--Beltrami operator on $Γ$, $ν$ is the outward normal to $Ω$, and the terms $P$ and $Q$ represent nonlinear damping terms, while $f$ and $g$ are nonlinear source, or sink, terms. In the paper we establish local and existence, uniqueness and Hadamard well--posedness results when source terms can be supercritical or super-supercritical.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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