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arXiv 2006.03192math.AP
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分数阶微分方程;可解性及其与经典微分方程的联系

Fractional oscillon equations; solvability and connection with classical oscillon equations

Flank D. M. Bezerra, Rodiak N. Figueroa-López, Marcelo J. D. Nascimento

摘要:

本文研究了Dirichlet边界条件下的非自治分式逼近方程$$ u_{tt}-μ(t)Δu+ω(t)u_t=f(u),\ x\inΩ,\ t\in\mathbb{R}, $$在$\partial Ω$上的渐近性质,其中$Ω$是$\mathbb{R}^N$中的有界光滑区域,$N\geqslant 3$,函数$ω$是时间依赖阻尼,$μ$是时间依赖传播速度的平方,$f$是非线性泛函.在对$ω$和$μ$的结构假设下,我们建立了Carvalho,Langa,Robinson \cite{CLR}和Di Plinio,Duane,Temam \cite{DDT1}意义下的分数阶模型的时间依赖吸引子的存在性.

英文摘要:

In this paper we are concerned with the asymptotic behavior of nonautonomous fractional approximations of oscillon equation $$ u_{tt}-μ(t)Δu+ω(t)u_t=f(u),\ x\inΩ,\ t\in\mathbb{R}, $$ subject to Dirichlet boundary condition on $\partial Ω$, where $Ω$ is a bounded smooth domain in $\mathbb{R}^N$, $N\geqslant 3$, the function $ω$ is a time-dependent damping, $μ$ is a time-dependent squared speed of propagation, and $f$ is a nonlinear functional. Under structural assumptions on $ω$ and $μ$ we establish the existence of time-dependent attractor for the fractional models in the sense of Carvalho, Langa, Robinson \cite{CLR}, and Di Plinio, Duane, Temam \cite{DDT1}.

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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