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On some supercritical problems involving the fractional Laplacian operator


Abstract

In this paper, a fractional Laplacian equation is investigated, which involve critical or supercritical Sobolev exponent as follows: \begin{equation*} \left\{ \begin{array}{lcl} (-\Delta)^{s} u=\lambda |u|^{p-2}u+|u|^{r-2}u+\mu |u|^{q-2}u, &\text{in } &\Omega,\\[1.5mm] u=0 &\text{on } &\partial\Omega, \end{array} \right. \end{equation*} where $(-\Delta)^{s}$ is the fractional Laplacian operator with $0< s < 1$, $1< p< 2< r< 2^*_{s}\leq q$, $2^*_{s}:=\frac{2N}{N-2s}$ is the fractional critical Sobolev exponent, $\lambda$, $\mu\geq 0$ are parameters and $\Omega\subseteq \mathbb{R}^N$$(N>2s)$ is a bounded domain with smooth boundary $\partial\Omega$. By using variational methods, truncation and Moser iteration techniques, we show that the problem has at least two nontrivial solutions.

У цій роботі досліджується наступне дробове рівняння Лапласа, яке включають критичний або надкритичний показник Соболєва: \begin{equation*} \left\{ \begin{array}{lcl} (-\Delta)^{s} u=\lambda |u|^{p-2}u+|u|^{r-2}u+\mu |u|^{q-2}u, &\text{in } &\Omega,\\[1.5mm] u=0 &\text{on } &\partial\Omega, \end{array} \right. \end{equation*} де $(-\Delta)^{s}$ — дробовий оператор Лапласа з $0< s< 1$, $1< p< 2< r< 2^*_{s}\leq q$, $2^*_{s}:=\frac{2N}{N-2s}$ це дробовий критичний показник Соболєва, $\lambda$, $\mu\geq 0$ є параметри та $\Omega\subseteq \mathbb{R}^N$$(N>2s)$ -- обмежена область з гладкою границею $\partial\Omega$. За допомогою варіаційних методів, скорочення та ітераційних методів Мозера показано, що задача має принаймні два нетривіальних розв'яків.

Key words: Fractional Laplacian; Variational methods; Moser iteration; Supercritical exponent.


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Article Information

TitleOn some supercritical problems involving the fractional Laplacian operator
SourceMethods Funct. Anal. Topology, Vol. 28 (2022), no. 2, 176-188
DOI10.31392/MFAT-npu26_2.2022.10
MathSciNet   MR4548155
Milestones  Received 26/05/2022
CopyrightThe Author(s) 2022 (CC BY-SA)

Authors Information

Jinguo Zhang
School of Mathematics and Statistics, Jiangxi Normal University, Nanchang 330022, China


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Citation Example

Jinguo Zhang, On some supercritical problems involving the fractional Laplacian operator, Methods Funct. Anal. Topology 28 (2022), no. 2, 176-188.


BibTex

@article {MFAT1793,
    AUTHOR = {Jinguo Zhang},
     TITLE = {On some supercritical problems involving the fractional Laplacian operator},
   JOURNAL = {Methods Funct. Anal. Topology},
  FJOURNAL = {Methods of Functional Analysis and Topology},
    VOLUME = {28},
      YEAR = {2022},
    NUMBER = {2},
     PAGES = {176-188},
      ISSN = {1029-3531},
  MRNUMBER = {MR4548155},
       DOI = {10.31392/MFAT-npu26_2.2022.10},
       URL = {http://mfat.imath.kiev.ua/article/?id=1793},
}


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