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Elliptic problem in an exterior domain driven by a singularity with a nonlocal Neumann condition


Abstract

We prove existence of a ground state solution to the following problem. \begin{align*} (-\Delta)^{s}u+u&=\lambda|u|^{-\gamma-1}u+P(x)|u|^{p-1}u \qquad \hbox{in}~\mathbb{R}^N\setminus\Omega,\\ N_su(x)&=0\qquad\text{in}~\Omega \end{align*} where $N\geq 2$, $\lambda>0$, $0\lt s,\gamma\lt 1$, $p\in(1,2_s^*-1)$ with $2_s^*=\frac{2N}{N-2s}$. Moreover, $\Omega\subset\mathbb{R}^N$ is a smooth bounded domain, $(-\Delta)^s$ denotes the $s$-fractional Laplacian and finally $N_s$ denotes a nonlocal operator that describes the Neumann boundary condition. We further establish existence of infinitely many bounded solutions to the problem.

Доведено існування розв’язку основного стану наступної задачі: \begin{align*} (-\Delta)^{s}u+u &=\lambda|u|^{-\gamma-1}u+P(x)|u|^{p-1}u \qquad \text{в}~ \mathbb{R}^N\setminus\Omega\\ N_su(x)&=0\qquad\text{в}~\Omega \end{align*} де $N\geq2$, $\lambda>0$, $0\lt s,\gamma\lt 1$, $p\in(1,2_s^*-1)$ з $2_s^*=\frac{2N}{N-2s}$. Крім того, $\Omega\subset\mathbb{R}^N$ — гладка обмежена область, $(-\Delta)^s$ позначає $s$-дробовий лапласіан і, нарешті, $N_s$ позначає нелокальний оператор, який описує неймановску граничну умову. Далі встановлюємо існування нескінченної кількості обмежених розв’язків задачі.

Key words: Fractional Laplacian, variable order fractional Sobolev space, Kirchhoff operator, ground state solution, singularity.


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Article Information

TitleElliptic problem in an exterior domain driven by a singularity with a nonlocal Neumann condition
SourceMethods Funct. Anal. Topology, Vol. 29 (2023), no. 1, 16-29
DOI10.31392/MFAT-npu26_1–2.2023.02
Milestones  Received 13/07/2023; Revised 06/09/2023
CopyrightThe Author(s) 2023 (CC BY-SA)

Authors Information

Debajyoti Choudhuri
School of basic sciences, Indian Institute of TechnologyBhubaneswar, Khordha - 752050, Odisha, India.

Kamel Saoudi
Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, Saudi Arabia


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Citation Example

Debajyoti Choudhuri and Kamel Saoudi, Elliptic problem in an exterior domain driven by a singularity with a nonlocal Neumann condition, Methods Funct. Anal. Topology 29 (2023), no. 1, 16-29.


BibTex

@article {MFAT1908,
    AUTHOR = {Debajyoti Choudhuri and Kamel Saoudi},
     TITLE = {Elliptic problem in an exterior domain driven by a singularity with a
  nonlocal Neumann
  condition},
   JOURNAL = {Methods Funct. Anal. Topology},
  FJOURNAL = {Methods of Functional Analysis and Topology},
    VOLUME = {29},
      YEAR = {2023},
    NUMBER = {1},
     PAGES = {16-29},
      ISSN = {1029-3531},
       DOI = {10.31392/MFAT-npu26_1–2.2023.02},
       URL = {http://mfat.imath.kiev.ua/article/?id=1908},
}


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