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FRACTIONAL SCHRÖDINGER–POISSON SYSTEM WITH SINGULARITY: EXISTENCE, UNIQUENESS, AND ASYMPTOTIC BEHAVIOR

Part of: Elliptic equations and systems Miscellaneous topics - Partial differential equations Partial differential equations

Published online by Cambridge University Press:  12 March 2020

SHENGBIN YU  and
JIANQING CHEN
SHENGBIN YU
Affiliation:
College of Mathematics and Informatics & FJKLMAA, Fujian Normal University, Qishan Campus, Fuzhou, Fujian350117, China Department of Basic Teaching and Research, Yango University, Fuzhou, Fujian350015, China, e-mail: yushengbin.8@163.com
JIANQING CHEN
Affiliation:
College of Mathematics and Informatics & FJKLMAA, Fujian Normal University, Qishan Campus, Fuzhou, Fujian350117, China, e-mail: jqchen@fjnu.edu.cn
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Abstract

In this paper, we consider the following fractional Schrödinger–Poisson system with singularity

\begin{equation*} \left \{\begin{array}{lcl} ({-}\Delta)^s u+V(x)u+\lambda \phi u = f(x)u^{-\gamma}, &&\quad x\in\mathbb{R}^3,\\ ({-}\Delta)^t \phi = u^2, &&\quad x\in\mathbb{R}^3,\\ u>0,&&\quad x\in\mathbb{R}^3, \end{array}\right. \end{equation*}

where 0 < γ < 1, λ > 0 and 0 < s ≤ t < 1 with 4s + 2t > 3. Under certain assumptions on V and f, we show the existence, uniqueness, and monotonicity of positive solution uλ using the variational method. We also give a convergence property of uλ as λ → 0, when λ is regarded as a positive parameter.

MSC classification

Primary: 35J20: Variational methods for second-order elliptic equations
Secondary: 35R11: Fractional partial differential equations 35B09: Positive solutions 35B40: Asymptotic behavior of solutions
Type
Research Article
Information
Glasgow Mathematical Journal , Volume 63 , Issue 1 , January 2021 , pp. 179 - 192
Copyright
© The Author(s) 2020. Published by Cambridge University Press on behalf of Glasgow Mathematical Journal Trust

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