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arXiv 2402.16489math.AP
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具有 Neumann 边界的临界椭圆方程组的多重边界峰解

Multiple Boundary Peak Solution for Critical Elliptic System with Neumann Boundary

Yuxia Guo, Shengyu Wu, TingFeng Yuan

AI总结:

本文研究具有 Neumann 边界的临界椭圆方程组,利用 Lyapunov-Schmidt 约化技巧证明了无穷多个边界多峰解的存在性,并揭示了边界平均曲率对解的存在性与行为的关键作用。

摘要:

我们考虑如下具有 Neumann 边界的椭圆方程组:在光滑有界区域 Ω⊂ℝ^N 中,-Δu + μu = v^p,-Δv + μv = u^q,在边界 ∂Ω 上满足 ∂u/∂n = ∂v/∂n = 0,且在 Ω 内 u>0, v>0,其中 μ 为正常数,(p,q) 位于临界双曲线上:1/(p+1) + 1/(q+1) = (N-2)/N。利用 Lyapunov-Schmidt 约化技巧,我们证明了上述方程组存在无穷多个解。这些解具有多个峰,且峰位于边界 ∂Ω 上。我们的结果表明,边界 ∂Ω 的几何性质,尤其是其平均曲率,对问题的解的存在性及其行为起着至关重要的作用。

英文摘要:

We consider the following elliptic system with Neumann boundary: \begin{equation} \begin{cases} -Δu + μu=v^p, &\hbox{in } Ω, \\-Δv + μv=u^q, &\hbox{in } Ω, \\\frac{\partial u}{\partial n} = \frac{\partial v}{\partial n} = 0, &\hbox{on } \partialΩ, \\u>0,v>0, &\hbox{in } Ω, \end{cases} \end{equation} where $Ω\subset \mathbb{R}^N$ is a smooth bounded domain, $μ$ is a positive constant and $(p,q)$ lies in the critical hyperbola: $$ \dfrac{1}{p+1} + \dfrac{1}{q+1} =\dfrac{N-2}{N}. $$ By using the Lyapunov-Schmidt reduction technique, we establish the existence of infinitely many solutions to above system. These solutions have multiple peaks that are located on the boundary $\partial Ω$. Our results show that the geometry of the boundary $\partialΩ,$ especially its mean curvature, plays a crucial role on the existence and the behaviour of the solutions to the problem.

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