<p>We are concerned with the existence and asymptotic behavior of multiple radial sign-changing solutions with the nodal characterization for a Kirchhoff-type problem involving the nonlinearity <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="526_2025_3083_Article_IEq1.gif" Format="GIF" Height="20" Rendition="HTML" Resolution="72" Type="Linedraw" Width="135" /> </InlineMediaObject> <EquationSource Format="TEX">\(|u|^{p-2}u(3&lt; p &lt; 4)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msup> <mrow> <mo stretchy="false">|</mo> <mi>u</mi> <mo stretchy="false">|</mo> </mrow> <mrow> <mi>p</mi> <mo>-</mo> <mn>2</mn> </mrow> </msup> <mi>u</mi> <mrow> <mo stretchy="false">(</mo> <mn>3</mn> <mo>&lt;</mo> <mi>p</mi> <mo>&lt;</mo> <mn>4</mn> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation> in <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="526_2025_3083_Article_IEq2.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="18" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mathbb {R}^3\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mn>3</mn> </msup> </math></EquationSource> </InlineEquation>. By developing some useful analysis techniques and introducing a novel definition of the Nehari manifold for the auxiliary system of the equations, we show that, for any positive integer <i>k</i>, the problem has a sign-changing solution <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="526_2025_3083_Article_IEq3.gif" Format="GIF" Height="21" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(u_k^b\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mi>u</mi> <mi>k</mi> <mi>b</mi> </msubsup> </math></EquationSource> </InlineEquation> changing signs exactly <i>k</i> times. Furthermore, the energy of <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="526_2025_3083_Article_IEq3.gif" Format="GIF" Height="21" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(u_k^b\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mi>u</mi> <mi>k</mi> <mi>b</mi> </msubsup> </math></EquationSource> </InlineEquation> is strictly increasing in <i>k</i>, as well as some asymptotic behaviors of <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="526_2025_3083_Article_IEq3.gif" Format="GIF" Height="21" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(u_k^b\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mi>u</mi> <mi>k</mi> <mi>b</mi> </msubsup> </math></EquationSource> </InlineEquation> are obtained. Our result is a complement of Deng (J Funct Anal 269:3500–3527, 2015), where the case <InlineEquation ID="IEq6"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="526_2025_3083_Article_IEq6.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="71" /> </InlineMediaObject> <EquationSource Format="TEX">\(2&lt;p&lt;4\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>2</mn> <mo>&lt;</mo> <mi>p</mi> <mo>&lt;</mo> <mn>4</mn> </mrow> </math></EquationSource> </InlineEquation> is left open.</p>

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On nodal solutions with a prescribed number of nodes for a Kirchhoff-type problem

  • Haining Fan,
  • Marco Squassina,
  • Jianjun Zhang

摘要

We are concerned with the existence and asymptotic behavior of multiple radial sign-changing solutions with the nodal characterization for a Kirchhoff-type problem involving the nonlinearity \(|u|^{p-2}u(3< p < 4)\) | u | p - 2 u ( 3 < p < 4 ) in \(\mathbb {R}^3\) R 3 . By developing some useful analysis techniques and introducing a novel definition of the Nehari manifold for the auxiliary system of the equations, we show that, for any positive integer k, the problem has a sign-changing solution \(u_k^b\) u k b changing signs exactly k times. Furthermore, the energy of \(u_k^b\) u k b is strictly increasing in k, as well as some asymptotic behaviors of \(u_k^b\) u k b are obtained. Our result is a complement of Deng (J Funct Anal 269:3500–3527, 2015), where the case \(2<p<4\) 2 < p < 4 is left open.