中文

环域内非线性椭圆方程迭代系统的正径向解

偏微分方程分析 2021-09-21 v1 经典分析与常微分方程

摘要

本文研究如下形式非线性椭圆方程迭代系统正径向解的存在性:uι˙(N2)2r02N2x2N2uι˙+(x)gι˙(uι˙+1)=0, R1<x<R2, \begin{aligned} \triangle{\mathtt{u}_{{\dot{\iota}} }}-\frac{(\mathtt{N}-2)^2r_0^{2\mathtt{N}-2}}{\vert x\vert^{2\mathtt{N}-2}}\mathtt{u}_{\dot{\iota}} +\ell(\vert x\vert)\mathtt{g}_{{\dot{\iota}} }(\mathtt{u}_{{\dot{\iota}} +1})=0,~\mathtt{R}_1<\vert x\vert<\mathtt{R}_2, \end{aligned} 其中 ι˙{1,2,3,,n},{\dot{\iota}} \in\{1,2,3,\cdot\cdot\cdot,\mathtt{n}\}, u1=un+1, \mathtt{u}_1= \mathtt{u}_{\mathtt{n}+1}, u=div(u),\triangle{\mathtt{u}}=\mathtt{div}(\triangledown \mathtt{u}), N>2,\mathtt{N}>2, =i=1mi,\ell=\prod_{i=1}^{m}\ell_i, 每个 i:(r0,+)(0,+)\ell_i:(r_0,+\infty)\to(0,+\infty) 连续, rN1r^{\mathtt{N}-1}\ell 可积, 且 gι˙:[0,+)R\mathtt{g}_{\dot{\iota}} :[0,+\infty)\to\mathbb{R} 连续,运用 Banach 空间中的各类不动点定理。此外,我们还利用完备度量空间中的 Rus 定理建立了所述系统解的唯一性。

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引用

@article{arxiv.2109.09066,
  title  = {Positive Radial Solutions for an Iterative System of Nonlinear Elliptic Equations in an Annulus},
  author = {Mahammad Khuddush and K. Rajendra Prasad},
  journal= {arXiv preprint arXiv:2109.09066},
  year   = {2021}
}