<p>We consider the following equation <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10998_2025_650_Article_IEq1.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="336" /> </InlineMediaObject> <EquationSource Format="TEX">\(\bigtriangleup u(x)+F(x,u(x),v(x))+g(x)x\cdot \nabla u(x)=0,\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo>△</mo> <mi>u</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> <mo>+</mo> <mi>F</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo>,</mo> <mi>u</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> <mo>,</mo> <mi>v</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> <mo stretchy="false">)</mo> <mo>+</mo> <mi>g</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> <mi>x</mi> <mo>·</mo> <mi mathvariant="normal">∇</mi> <mi>u</mi> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mn>0</mn> <mo>,</mo> </mrow> </math></EquationSource> </InlineEquation> for <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10998_2025_650_Article_IEq2.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="221" /> </InlineMediaObject> <EquationSource Format="TEX">\(x\in \Omega _{R}=\left\{ x\in \mathbb {R}^{n},||x||&gt;R\right\} ,\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>x</mi> <mo>∈</mo> <msub> <mi mathvariant="normal">Ω</mi> <mi>R</mi> </msub> <mo>=</mo> <mfenced close="}" open="{"> <mi>x</mi> <mo>∈</mo> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>n</mi> </msup> <mrow> <mo>,</mo> <mo stretchy="false">|</mo> <mo stretchy="false">|</mo> <mi>x</mi> <mo stretchy="false">|</mo> <mo stretchy="false">|</mo> <mo>&gt;</mo> <mi>R</mi> </mrow> </mfenced> <mo>,</mo> </mrow> </math></EquationSource> </InlineEquation> <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10998_2025_650_Article_IEq3.gif" Format="GIF" Height="13" Rendition="HTML" Resolution="72" Type="Linedraw" Width="42" /> </InlineMediaObject> <EquationSource Format="TEX">\(n&gt;2\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>n</mi> <mo>&gt;</mo> <mn>2</mn> </mrow> </math></EquationSource> </InlineEquation> with the condition <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10998_2025_650_Article_IEq4.gif" Format="GIF" Height="20" Rendition="HTML" Resolution="72" Type="Linedraw" Width="131" /> </InlineMediaObject> <EquationSource Format="TEX">\(u(x)=\Theta (||x||^{2-n})\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>u</mi> <mrow> <mo stretchy="false">(</mo> <mi>x</mi> <mo stretchy="false">)</mo> </mrow> <mo>=</mo> <mi mathvariant="normal">Θ</mi> <mo stretchy="false">(</mo> <mo stretchy="false">|</mo> <mo stretchy="false">|</mo> <mi>x</mi> <mo stretchy="false">|</mo> <msup> <mo stretchy="false">|</mo> <mrow> <mn>2</mn> <mo>-</mo> <mi>n</mi> </mrow> </msup> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> as <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10998_2025_650_Article_IEq5.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="93" /> </InlineMediaObject> <EquationSource Format="TEX">\(||x||\rightarrow +\infty .\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo stretchy="false">|</mo> <mo stretchy="false">|</mo> <mi>x</mi> <mo stretchy="false">|</mo> <mo stretchy="false">|</mo> <mo stretchy="false">→</mo> <mo>+</mo> <mi>∞</mi> <mo>.</mo> </mrow> </math></EquationSource> </InlineEquation> The goal of the paper is to discuss the existence of minimal solutions of a class of elliptic problems and their dependence on functional parameters from a subset <i>V</i> of a certain Hölder space. The latter result will be obtained in the case of the lack of uniqueness of a solution. We will show that for each parameter from <i>V</i>, our problem possesses a non-decreasing sequence of minimal solutions with finite energy.</p>

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Dependence of positive solutions on functional parameters for a class of elliptic problems

  • Aleksandra Orpel

摘要

We consider the following equation \(\bigtriangleup u(x)+F(x,u(x),v(x))+g(x)x\cdot \nabla u(x)=0,\) u ( x ) + F ( x , u ( x ) , v ( x ) ) + g ( x ) x · u ( x ) = 0 , for \(x\in \Omega _{R}=\left\{ x\in \mathbb {R}^{n},||x||>R\right\} ,\) x Ω R = x R n , | | x | | > R , \(n>2\) n > 2 with the condition \(u(x)=\Theta (||x||^{2-n})\) u ( x ) = Θ ( | | x | | 2 - n ) as \(||x||\rightarrow +\infty .\) | | x | | + . The goal of the paper is to discuss the existence of minimal solutions of a class of elliptic problems and their dependence on functional parameters from a subset V of a certain Hölder space. The latter result will be obtained in the case of the lack of uniqueness of a solution. We will show that for each parameter from V, our problem possesses a non-decreasing sequence of minimal solutions with finite energy.