arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.03233math.AP
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量子场论中分式$P-Q$ Laplace算子的主eigenvalue和正解

Principal eigenvalue and positive solutions for Fractional $P-Q$ Laplace operator in quantum field theory

Thanh-Hieu Nguyen, Hoang-Hung Vo

摘要:

本文讨论了由具有不定权的非齐次分式$p\& q$ Laplacian算子驱动的特征值问题正解的存在性和非存在性,其中$Ø$是$\R^N$中的一个外零扩张的光滑有界区域,$$\left(-Δ_p\right)^αu + \left(-Δ_q\right)^βu \,= λ\left[a(x) \left|u\right|^{p-2}u + b(x) \left|u\right|^{q-2}u \right]\quad\quad\textrm{in $Ø$},$$.当$Ø=\R^N$和$b\equiv0$时,我们进一步证明了如果$1<q<p<q^*_β=\frac{Nq}{N-qβ}$和$0\leq a\in L^{\left(\frac{q_β^*}{s}\right)'}\left(\R^N\right)\bigcap L^{\infty}\left(\R^N\right)$与$s$满足$\dfrac{p-t}{p_α^*}+ \dfrac{p\left(1-t\right)}{s} =1$,对于某些$t\in \left(0, \sqrt{\dfrac{p-q}{p}}\right).$,存在一个连续的特征值族。我们的方法强烈地响应于变分分析,其中山路定理起着关键作用。本文研究的主要困难在于如何建立Palais-Smale条件。特别地,在$\R^N$中,由于空间紧性的缺乏和嵌入$W^{α, p}\left(\R^N\right) \hookrightarrow W^{β, q}\left(\R^N\right)$,我们必须采用P.L.狮子\cite{PLL}克服困难。

英文摘要:

This article deals with the existence and non-existence of positive solutions for the eigenvalue problem driven by nonhomogeneous fractional $p\& q$ Laplacian operator with indefinite weights $$\left(-Δ_p\right)^αu + \left(-Δ_q\right)^βu \,= λ\left[a(x) \left|u\right|^{p-2}u + b(x) \left|u\right|^{q-2}u \right]\quad\quad\textrm{in $Ø$},$$ where $Ø$ is a smooth bounded domain in $\R^N$ extended by zero outside. When $Ø=\R^N$ and $b\equiv0$, we further show that there exists a continuous family of the eigenvalue if $1<q<p<q^*_β=\frac{Nq}{N-qβ}$ and $0\leq a\in L^{\left(\frac{q_β^*}{s}\right)'}\left(\R^N\right)\bigcap L^{\infty}\left(\R^N\right)$ with $s$ satisfies $\dfrac{p-t}{p_α^*}+ \dfrac{p\left(1-t\right)}{s} =1$, for some $t\in \left(0, \sqrt{\dfrac{p-q}{p}}\right).$ Our approach replies strongly on variational analysis, in which the Mountain pass theorem plays the key role. The main difficulty in this study is that how to establish the Palais-Smale conditions. In particular, in $\R^N$, due to the lack of spatial compactness and the embedding $W^{α, p}\left(\R^N\right) \hookrightarrow W^{β, q}\left(\R^N\right)$, we must employ the concentration-compactness principle of P.L. Lions \cite{PLL} to overcome the difficulty.

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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