<p>In this paper, we consider a class of modified Schrödinger-Poisson system with Kirchhoff-type perturbation by use of variational methods: <Equation ID="Equ1"> <EquationNumber>0.1</EquationNumber> <EquationSource Format="MATHML"><math> <mrow> <mo>{</mo> <mtable columnalign="left left" columnspacing="1em"> <mtr> <mtd> <mo maxsize="5.2ex" minsize="5.2ex" stretchy="true">(</mo> <mn>1</mn> <mo>+</mo> <mi>b</mi> <msub> <mo>∫</mo> <msup> <mi mathvariant="double-struck">R</mi> <mn>3</mn> </msup> </msub> <msup> <mi>g</mi> <mn>2</mn> </msup> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <mo stretchy="false">|</mo> <mi mathvariant="normal">∇</mi> <mi>u</mi> <msup> <mo stretchy="false">|</mo> <mn>2</mn> </msup> <mi>d</mi> <mi>x</mi> <mo maxsize="5.2ex" minsize="5.2ex" stretchy="true">)</mo> <mo stretchy="false">[</mo> <mo>−</mo> <mtext>div</mtext> <mo stretchy="false">(</mo> <msup> <mi>g</mi> <mn>2</mn> </msup> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <mi mathvariant="normal">∇</mi> <mi>u</mi> <mo stretchy="false">)</mo> <mo>+</mo> <mi>g</mi> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <msup> <mi>g</mi> <mo>′</mo> </msup> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <mo stretchy="false">|</mo> <mi mathvariant="normal">∇</mi> <mi>u</mi> <msup> <mo stretchy="false">|</mo> <mn>2</mn> </msup> <mo stretchy="false">]</mo> </mtd> </mtr> <mtr> <mtd> <mo>+</mo> <mi>V</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> <mi>u</mi> <mo>+</mo> <mi>ϕ</mi> <mi>u</mi> <mo>=</mo> <mi>h</mi> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <mo>+</mo> <mi>ϑ</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> <mo>,</mo> </mtd> <mtd> <mi>x</mi> <mo>∈</mo> <msup> <mi mathvariant="double-struck">R</mi> <mn>3</mn> </msup> <mo>,</mo> </mtd> </mtr> <mtr> <mtd> <mo>−</mo> <mi mathvariant="normal">Δ</mi> <mi>ϕ</mi> <mo>=</mo> <msup> <mi>u</mi> <mn>2</mn> </msup> <mo>,</mo> </mtd> <mtd> <mi>x</mi> <mo>∈</mo> <msup> <mi mathvariant="double-struck">R</mi> <mn>3</mn> </msup> <mo>,</mo> </mtd> </mtr> </mtable> </mrow> </math></EquationSource> <EquationSource Format="TEX">\( \left \{ \textstyle\begin{array}{l@{\quad}l} \bigg(1+b\int _{\mathbb{R}^{3}}g^{2}(u)|\nabla u|^{2}dx\bigg)[- \textrm{div}(g^{2}(u)\nabla u)+g(u)g'(u)|\nabla u|^{2}] \\ + V(x)u + \phi u=h(u)+{\vartheta (x)},&amp;x\in \mathbb{R}^{3}, \\ -\Delta \phi =u^{2},&amp;x\in \mathbb{R}^{3}, \end{array}\displaystyle \right . \)</EquationSource> </Equation> where <InlineEquation ID="IEq1"> <EquationSource Format="MATHML"><math> <mi>b</mi> <mo>≥</mo> <mn>0</mn> </math></EquationSource> <EquationSource Format="TEX">$b\geq 0$</EquationSource> </InlineEquation>, <InlineEquation ID="IEq2"> <EquationSource Format="MATHML"><math> <mi>g</mi> <mo>∈</mo> <msup> <mi>C</mi> <mn>1</mn> </msup> <mo stretchy="false">(</mo> <mi mathvariant="double-struck">R</mi> <mo>,</mo> <mspace width="0.2em" /> <msup> <mi mathvariant="double-struck">R</mi> <mo>+</mo> </msup> <mo stretchy="false">)</mo> </math></EquationSource> <EquationSource Format="TEX">$g\in C^{1}(\mathbb{R},\,\mathbb{R}^{+})$</EquationSource> </InlineEquation>, <i>V</i> and <i>h</i> are continuous functions, <InlineEquation ID="IEq3"> <EquationSource Format="MATHML"><math> <mi>ϑ</mi> <mo>≢</mo> <mn>0</mn> </math></EquationSource> <EquationSource Format="TEX">$\vartheta \not \equiv 0$</EquationSource> </InlineEquation>. There are three major ingredients in two cases. Firstly, for <InlineEquation ID="IEq4"> <EquationSource Format="MATHML"><math> <mi>ϑ</mi> <mo>=</mo> <mn>0</mn> </math></EquationSource> <EquationSource Format="TEX">$\vartheta =0$</EquationSource> </InlineEquation>, we demonstrated the system (<InternalRef RefID="Equ1">0.1</InternalRef>) has a nontrivial ground state solution for <InlineEquation ID="IEq5"> <EquationSource Format="MATHML"><math> <mi>h</mi> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>λ</mi> <mi>f</mi> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <mo>+</mo> <mi>g</mi> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <msup> <mi>G</mi> <mn>5</mn> </msup> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> </math></EquationSource> <EquationSource Format="TEX">$h(u)=\lambda f(u)+g(u)G^{5}(u)$</EquationSource> </InlineEquation>, where <InlineEquation ID="IEq6"> <EquationSource Format="MATHML"><math> <mi>G</mi> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> <mo>=</mo> <msubsup> <mo>∫</mo> <mn>0</mn> <mi>u</mi> </msubsup> <mi>g</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mi>d</mi> <mi>t</mi> </math></EquationSource> <EquationSource Format="TEX">$G(u)=\int _{0}^{u}g(t)dt$</EquationSource> </InlineEquation>. Moreover, when nonlinear term <InlineEquation ID="IEq7"> <EquationSource Format="MATHML"><math> <mi>h</mi> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> </math></EquationSource> <EquationSource Format="TEX">$h(u)$</EquationSource> </InlineEquation> satisfies appropriate assumptions, a sequence of weak solutions were obtained by Clark’s theorem. Finally, for <InlineEquation ID="IEq8"> <EquationSource Format="MATHML"><math> <mi>ϑ</mi> <mo>≠</mo> <mn>0</mn> </math></EquationSource> <EquationSource Format="TEX">$\vartheta \neq 0$</EquationSource> </InlineEquation>, with the help of Jeanjean theorem and cut-off function, at least two positive solutions of (<InternalRef RefID="Equ1">0.1</InternalRef>) were gained. To the best of our knowledge, this paper is one of the first contribution to study the nonhomogeneous generalized Kirchhoff-Schrödinger-Poisson system.</p>

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Multiple solutions for nonhomogeneous generalized quasilinear Kirchhoff-Schrödinger-Poisson system

  • Yaru Wang,
  • Jing Zhang

摘要

In this paper, we consider a class of modified Schrödinger-Poisson system with Kirchhoff-type perturbation by use of variational methods: 0.1 { ( 1 + b R 3 g 2 ( u ) | u | 2 d x ) [ div ( g 2 ( u ) u ) + g ( u ) g ( u ) | u | 2 ] + V ( x ) u + ϕ u = h ( u ) + ϑ ( x ) , x R 3 , Δ ϕ = u 2 , x R 3 , \( \left \{ \textstyle\begin{array}{l@{\quad}l} \bigg(1+b\int _{\mathbb{R}^{3}}g^{2}(u)|\nabla u|^{2}dx\bigg)[- \textrm{div}(g^{2}(u)\nabla u)+g(u)g'(u)|\nabla u|^{2}] \\ + V(x)u + \phi u=h(u)+{\vartheta (x)},&x\in \mathbb{R}^{3}, \\ -\Delta \phi =u^{2},&x\in \mathbb{R}^{3}, \end{array}\displaystyle \right . \) where b 0 $b\geq 0$ , g C 1 ( R , R + ) $g\in C^{1}(\mathbb{R},\,\mathbb{R}^{+})$ , V and h are continuous functions, ϑ 0 $\vartheta \not \equiv 0$ . There are three major ingredients in two cases. Firstly, for ϑ = 0 $\vartheta =0$ , we demonstrated the system (0.1) has a nontrivial ground state solution for h ( u ) = λ f ( u ) + g ( u ) G 5 ( u ) $h(u)=\lambda f(u)+g(u)G^{5}(u)$ , where G ( u ) = 0 u g ( t ) d t $G(u)=\int _{0}^{u}g(t)dt$ . Moreover, when nonlinear term h ( u ) $h(u)$ satisfies appropriate assumptions, a sequence of weak solutions were obtained by Clark’s theorem. Finally, for ϑ 0 $\vartheta \neq 0$ , with the help of Jeanjean theorem and cut-off function, at least two positive solutions of (0.1) were gained. To the best of our knowledge, this paper is one of the first contribution to study the nonhomogeneous generalized Kirchhoff-Schrödinger-Poisson system.