<p>The aim of this paper is to study the quasilinear elliptic equation <Equation ID="Equ23"> <EquationSource Format="TEX">\(\begin{aligned} \left\{ \begin{array}{ll} -\Delta u-\Delta (u^2)u-\lambda u=Q(x)h(u),\,\, x\in \mathbb {R}^N,\\ \int _{\mathbb {R}^N}|u|^2\text {d}x=a, \end{array} \right. \end{aligned}\)</EquationSource> <EquationSource Format="MATHML"><math display="block"> <mrow> <mtable> <mtr> <mtd columnalign="right"> <mfenced open="{"> <mrow> <mtable> <mtr> <mtd columnalign="left"> <mrow> <mo>-</mo> <mi mathvariant="normal">Δ</mi> <mi>u</mi> <mo>-</mo> <mi mathvariant="normal">Δ</mi> <mrow> <mo stretchy="false">(</mo> <msup> <mi>u</mi> <mn>2</mn> </msup> <mo stretchy="false">)</mo> </mrow> <mi>u</mi> <mo>-</mo> <mi>λ</mi> <mi>u</mi> <mo>=</mo> <mi>Q</mi> <mrow> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> </mrow> <mi>h</mi> <mrow> <mo stretchy="false">(</mo> <mi>u</mi> <mo stretchy="false">)</mo> </mrow> <mo>,</mo> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mi>x</mi> <mo>∈</mo> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> <mo>,</mo> </mrow> </mtd> </mtr> <mtr> <mtd columnalign="left"> <mrow> <mrow /> <msub> <mo>∫</mo> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> </msub> <msup> <mrow> <mo stretchy="false">|</mo> <mi>u</mi> <mo stretchy="false">|</mo> </mrow> <mn>2</mn> </msup> <mtext>d</mtext> <mi>x</mi> <mo>=</mo> <mi>a</mi> <mo>,</mo> </mrow> </mtd> </mtr> </mtable> </mrow> </mfenced> </mtd> </mtr> </mtable> </mrow> </math></EquationSource> </Equation>where <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(N\ge 2\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>N</mi> <mo>≥</mo> <mn>2</mn> </mrow> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\lambda \in \mathbb {R}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>λ</mi> <mo>∈</mo> <mi mathvariant="double-struck">R</mi> </mrow> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(a&gt;0\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>a</mi> <mo>&gt;</mo> <mn>0</mn> </mrow> </math></EquationSource> </InlineEquation> is a given mass and <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(Q\in \mathcal {C}(\mathbb {R}^N,[0,+\infty ))\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>Q</mi> <mo>∈</mo> <mi mathvariant="script">C</mi> <mo stretchy="false">(</mo> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> <mo>,</mo> <mrow> <mo stretchy="false">[</mo> <mn>0</mn> <mo>,</mo> <mo>+</mo> <mi>∞</mi> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> is a nonlinear function. By a suitable change of variables, the existence of ground state normalized solutions with the non-autonomous nonlinearity are established via a dual method, which has rarely been considered for quasilinear elliptic problems. Our results are the supplement of quasilinear elliptic equations with prescribed mass.</p>

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Ground State Normalized Solutions for Quasilinear Elliptic Equations with Nonautonomous Nonlinearity via a Dual Method

  • Xuequn Xu

摘要

The aim of this paper is to study the quasilinear elliptic equation \(\begin{aligned} \left\{ \begin{array}{ll} -\Delta u-\Delta (u^2)u-\lambda u=Q(x)h(u),\,\, x\in \mathbb {R}^N,\\ \int _{\mathbb {R}^N}|u|^2\text {d}x=a, \end{array} \right. \end{aligned}\) - Δ u - Δ ( u 2 ) u - λ u = Q ( x ) h ( u ) , x R N , R N | u | 2 d x = a , where \(N\ge 2\) N 2 , \(\lambda \in \mathbb {R}\) λ R , \(a>0\) a > 0 is a given mass and \(Q\in \mathcal {C}(\mathbb {R}^N,[0,+\infty ))\) Q C ( R N , [ 0 , + ) ) is a nonlinear function. By a suitable change of variables, the existence of ground state normalized solutions with the non-autonomous nonlinearity are established via a dual method, which has rarely been considered for quasilinear elliptic problems. Our results are the supplement of quasilinear elliptic equations with prescribed mass.