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arXiv 2109.01567math.AP
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非线性板方程解的存在性理论

Existence theory of the nonlinear plate equations

Carlos Banquet, Gilmar Garbugio, Élder J. Villamizar-Roa

摘要:

本文对$\mathbb{R}^{n}\times (0,\infty),$ $n\geq1,$中的非线性板方程进行了理论分析,该方程的非线性项为一类多项式。证明了在$L^{1}(\mathbb{R}^{n})\cap H^s(\mathbb{R}^{n})$ -空间中小初值下整体温和解的存在唯一性。在Bessel势空间$H^s_p(\mathbb{R}^n)=(I-Δ)^{s/2}L^p(\mathbb{R}^n).$的框架下,我们证明了局部解和整体解的存在唯一性。为了得到存在性结果,我们对相应的线性问题的解给出了新的时间衰减估计。

英文摘要:

This paper is devoted to the theoretical analysis of the nonlinear plate equations in $\mathbb{R}^{n}\times (0,\infty),$ $n\geq1,$ with nonlinearity involving a type polynomial behavior. We prove the existence and uniqueness of global mild solutions for small initial data in $L^{1}(\mathbb{R}^{n})\cap H^s(\mathbb{R}^{n})$-spaces. We also prove the existence and uniqueness of local and global solutions in the framework of Bessel-potential spaces $H^s_p(\mathbb{R}^n)=(I-Δ)^{s/2}L^p(\mathbb{R}^n).$ In order to derive the existence results we develop new time decay estimates of the solution of the corresponding linear problem.

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