<p>This paper is concerned with the following <i>N</i>-Laplacian Kirchhoff equation with singular term and the nonlinearity <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(f(x,\cdot )\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>f</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo>,</mo> <mo>·</mo> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> possesses critical exponential growth at infinity, <Equation ID="Equ75"> <EquationSource Format="TEX">\(\begin{aligned} -\left( 1+b\int _{ \mathbb {R}^{N}}|\nabla u|^{N} \textrm{d}x \right) \Delta _N u+V(x)|u|^{N-2}u=\frac{f(x,u)}{|x|^\eta },\ \ \text{ in } \mathbb {R}^N \text{, } N\ge 2 , \end{aligned}\)</EquationSource> <EquationSource Format="MATHML"><math display="block"> <mrow> <mtable> <mtr> <mtd columnalign="right"> <mrow> <mo>-</mo> <mfenced close=")" open="("> <mn>1</mn> <mo>+</mo> <mi>b</mi> <msub> <mo>∫</mo> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> </msub> <msup> <mrow> <mo stretchy="false">|</mo> <mi mathvariant="normal">∇</mi> <mi>u</mi> <mo stretchy="false">|</mo> </mrow> <mi>N</mi> </msup> <mtext>d</mtext> <mi>x</mi> </mfenced> <msub> <mi mathvariant="normal">Δ</mi> <mi>N</mi> </msub> <mi>u</mi> <mo>+</mo> <mi>V</mi> <mrow> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> </mrow> <msup> <mrow> <mo stretchy="false">|</mo> <mi>u</mi> <mo stretchy="false">|</mo> </mrow> <mrow> <mi>N</mi> <mo>-</mo> <mn>2</mn> </mrow> </msup> <mi>u</mi> <mo>=</mo> <mfrac> <mrow> <mi>f</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo>,</mo> <mi>u</mi> <mo stretchy="false">)</mo> </mrow> <msup> <mrow> <mo stretchy="false">|</mo> <mi>x</mi> <mo stretchy="false">|</mo> </mrow> <mi>η</mi> </msup> </mfrac> <mo>,</mo> <mspace width="4pt" /> <mspace width="4pt" /> <mspace width="0.333333em" /> <mtext>in</mtext> <mspace width="0.333333em" /> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> <mtext>,</mtext> <mspace width="0.333333em" /> <mi>N</mi> <mo>≥</mo> <mn>2</mn> <mo>,</mo> </mrow> </mtd> </mtr> </mtable> </mrow> </math></EquationSource> </Equation>where <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(b&gt;0\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>b</mi> <mo>&gt;</mo> <mn>0</mn> </mrow> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(0&lt;\eta &lt;N\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>0</mn> <mo>&lt;</mo> <mi>η</mi> <mo>&lt;</mo> <mi>N</mi> </mrow> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(V\in \mathcal {C}(\mathbb {R}^N,\mathbb {R})\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>V</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> <mi mathvariant="double-struck">R</mi> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(\Delta _N u:=\textrm{div}(|\nabla u|^{N-2}\nabla u)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msub> <mi mathvariant="normal">Δ</mi> <mi>N</mi> </msub> <mi>u</mi> <mo>:</mo> <mo>=</mo> <msup> <mrow> <mtext>div</mtext> <mo stretchy="false">(</mo> <mo stretchy="false">|</mo> <mi mathvariant="normal">∇</mi> <mi>u</mi> <mo stretchy="false">|</mo> </mrow> <mrow> <mi>N</mi> <mo>-</mo> <mn>2</mn> </mrow> </msup> <mrow> <mi mathvariant="normal">∇</mi> <mi>u</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation>. We develop some delicate analyses to deal with several challenges caused by the complicated interplay among the singular potential <InlineEquation ID="IEq8"> <EquationSource Format="TEX">\(1/|x|^\eta \)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>1</mn> <mo stretchy="false">/</mo> <msup> <mrow> <mo stretchy="false">|</mo> <mi>x</mi> <mo stretchy="false">|</mo> </mrow> <mi>η</mi> </msup> </mrow> </math></EquationSource> </InlineEquation>, the nonlocal term <InlineEquation ID="IEq9"> <EquationSource Format="TEX">\((\int _{\mathbb {R}^N}|\nabla u|^N\textrm{d}x)\Delta _N u\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mrow> <mo stretchy="false">(</mo> </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 mathvariant="normal">∇</mi> <mi>u</mi> <mo stretchy="false">|</mo> </mrow> <mi>N</mi> </msup> <mrow> <mtext>d</mtext> <mi>x</mi> <mo stretchy="false">)</mo> </mrow> <msub> <mi mathvariant="normal">Δ</mi> <mi>N</mi> </msub> <mi>u</mi> </mrow> </math></EquationSource> </InlineEquation> and the critical exponential growth of the nonlinearity <i>f</i>(<i>x</i>,&#xa0;<i>u</i>). It is worth noting that a key ingredient in restoring the compactness of Cerami sequence is to control the Mountain-pass minimax level by a suitable threshold, this will be done by introducing more natural growth conditions on <i>f</i> and developing some variational techniques. By employing the Mountain-pass theorem, singular Trudinger–Moser inequality and some precise estimates, we establish the existence of ground state solutions for the above problem.</p>

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N-Laplacian Kirchhoff Equation with Singular Exponential Growth in \(\mathbb {R}^N\): Ground State Solutions

  • Lizhen Lai,
  • Dongdong Qin,
  • Zijun Yuan,
  • Jing Zhang

摘要

This paper is concerned with the following N-Laplacian Kirchhoff equation with singular term and the nonlinearity \(f(x,\cdot )\) f ( x , · ) possesses critical exponential growth at infinity, \(\begin{aligned} -\left( 1+b\int _{ \mathbb {R}^{N}}|\nabla u|^{N} \textrm{d}x \right) \Delta _N u+V(x)|u|^{N-2}u=\frac{f(x,u)}{|x|^\eta },\ \ \text{ in } \mathbb {R}^N \text{, } N\ge 2 , \end{aligned}\) - 1 + b R N | u | N d x Δ N u + V ( x ) | u | N - 2 u = f ( x , u ) | x | η , in R N , N 2 , where \(b>0\) b > 0 , \(0<\eta <N\) 0 < η < N , \(V\in \mathcal {C}(\mathbb {R}^N,\mathbb {R})\) V C ( R N , R ) and \(\Delta _N u:=\textrm{div}(|\nabla u|^{N-2}\nabla u)\) Δ N u : = div ( | u | N - 2 u ) . We develop some delicate analyses to deal with several challenges caused by the complicated interplay among the singular potential \(1/|x|^\eta \) 1 / | x | η , the nonlocal term \((\int _{\mathbb {R}^N}|\nabla u|^N\textrm{d}x)\Delta _N u\) ( R N | u | N d x ) Δ N u and the critical exponential growth of the nonlinearity f(xu). It is worth noting that a key ingredient in restoring the compactness of Cerami sequence is to control the Mountain-pass minimax level by a suitable threshold, this will be done by introducing more natural growth conditions on f and developing some variational techniques. By employing the Mountain-pass theorem, singular Trudinger–Moser inequality and some precise estimates, we establish the existence of ground state solutions for the above problem.