<p>In this paper, we investigate a class of quasilinear Schrödinger equations involving the Laplacian, a potential function <i>V</i>(<i>x</i>), and a nonlinear term that depends on a function <i>f</i>(<i>x</i>,&#xa0;<i>u</i>). The variable <i>x</i> belongs to <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="42985_2025_338_Article_IEq1.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mathbb {R}^N\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> </math></EquationSource> </InlineEquation>, where <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="42985_2025_338_Article_IEq2.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="48" /> </InlineMediaObject> <EquationSource Format="TEX">\(N \ge 3\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>N</mi> <mo>≥</mo> <mn>3</mn> </mrow> </math></EquationSource> </InlineEquation>. We impose suitable conditions on the parameter <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="42985_2025_338_Article_IEq3.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="11" /> </InlineMediaObject> <EquationSource Format="TEX">\(\tau \)</EquationSource> <EquationSource Format="MATHML"><math> <mi>τ</mi> </math></EquationSource> </InlineEquation> (with <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="42985_2025_338_Article_IEq4.gif" Format="GIF" Height="15" Rendition="HTML" Resolution="72" Type="Linedraw" Width="42" /> </InlineMediaObject> <EquationSource Format="TEX">\(\tau \ge 2\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>τ</mi> <mo>≥</mo> <mn>2</mn> </mrow> </math></EquationSource> </InlineEquation>), the potential <i>V</i> (assumed to be continuous on <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="42985_2025_338_Article_IEq1.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mathbb {R}^N\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> </math></EquationSource> </InlineEquation>), and the nonlinearity <i>f</i> (assumed to be locally defined with respect to <i>u</i> near the origin). Under these assumptions, we establish the existence of infinitely many solutions in a neighborhood of the origin. An example is provided to illustrate the applicability of the main theoretical results.</p>

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New results for a class of quasilinear Schrödinger equations

  • Taib Talbi

摘要

In this paper, we investigate a class of quasilinear Schrödinger equations involving the Laplacian, a potential function V(x), and a nonlinear term that depends on a function f(xu). The variable x belongs to \(\mathbb {R}^N\) R N , where \(N \ge 3\) N 3 . We impose suitable conditions on the parameter \(\tau \) τ (with \(\tau \ge 2\) τ 2 ), the potential V (assumed to be continuous on \(\mathbb {R}^N\) R N ), and the nonlinearity f (assumed to be locally defined with respect to u near the origin). Under these assumptions, we establish the existence of infinitely many solutions in a neighborhood of the origin. An example is provided to illustrate the applicability of the main theoretical results.