<p>In this paper, we prove a stability result for the wave equation with viscoelastic and frictional boundary damping. Here the domain <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="28_2025_1077_Article_IEq1.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="58" /> </InlineMediaObject> <EquationSource Format="TEX">\(\Omega \subset {\mathbb {R}}^N\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi mathvariant="normal">Ω</mi> <mo>⊂</mo> <msup> <mrow> <mi mathvariant="double-struck">R</mi> </mrow> <mi>N</mi> </msup> </mrow> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="28_2025_1077_Article_IEq2.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="48" /> </InlineMediaObject> <EquationSource Format="TEX">\(N\ge 2\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>N</mi> <mo>≥</mo> <mn>2</mn> </mrow> </math></EquationSource> </InlineEquation>, is a bounded open set with boundary <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="28_2025_1077_Article_IEq3.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="85" /> </InlineMediaObject> <EquationSource Format="TEX">\(\Gamma =\Gamma _0\cup \Gamma _1\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi mathvariant="normal">Γ</mi> <mo>=</mo> <msub> <mi mathvariant="normal">Γ</mi> <mn>0</mn> </msub> <mo>∪</mo> <msub> <mi mathvariant="normal">Γ</mi> <mn>1</mn> </msub> </mrow> </math></EquationSource> </InlineEquation>, meas<InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="28_2025_1077_Article_IEq4.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="30" /> </InlineMediaObject> <EquationSource Format="TEX">\((\Gamma _0)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo stretchy="false">(</mo> <msub> <mi mathvariant="normal">Γ</mi> <mn>0</mn> </msub> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> and meas<InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="28_2025_1077_Article_IEq5.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="30" /> </InlineMediaObject> <EquationSource Format="TEX">\((\Gamma _1)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo stretchy="false">(</mo> <msub> <mi mathvariant="normal">Γ</mi> <mn>1</mn> </msub> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> are positive and such that <InlineEquation ID="IEq6"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="28_2025_1077_Article_IEq6.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="87" /> </InlineMediaObject> <EquationSource Format="TEX">\({\overline{\Gamma }}_0\cap {\overline{\Gamma }}_1\ne \emptyset \)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msub> <mover> <mi mathvariant="normal">Γ</mi> <mo>¯</mo> </mover> <mn>0</mn> </msub> <mo>∩</mo> <msub> <mover> <mi mathvariant="normal">Γ</mi> <mo>¯</mo> </mover> <mn>1</mn> </msub> <mo>≠</mo> <mi mathvariant="normal">∅</mi> </mrow> </math></EquationSource> </InlineEquation>. The presence of singularities and a time-dependent boundary memory term bring several technical difficulties, and new calculations are necessary to combine an appropriate method and the techniques of Bey et al. (J Math Pures Appl 78:1043–1067, 1999) and Grisvard (J Math pures et appl 68: 215–259, 1989).</p>

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Stability for the wave equation with memory boundary term and singularities

  • M. M. Cavalcanti,
  • V. N. Domingos Cavalcanti,
  • A. Vicente

摘要

In this paper, we prove a stability result for the wave equation with viscoelastic and frictional boundary damping. Here the domain \(\Omega \subset {\mathbb {R}}^N\) Ω R N , \(N\ge 2\) N 2 , is a bounded open set with boundary \(\Gamma =\Gamma _0\cup \Gamma _1\) Γ = Γ 0 Γ 1 , meas \((\Gamma _0)\) ( Γ 0 ) and meas \((\Gamma _1)\) ( Γ 1 ) are positive and such that \({\overline{\Gamma }}_0\cap {\overline{\Gamma }}_1\ne \emptyset \) Γ ¯ 0 Γ ¯ 1 . The presence of singularities and a time-dependent boundary memory term bring several technical difficulties, and new calculations are necessary to combine an appropriate method and the techniques of Bey et al. (J Math Pures Appl 78:1043–1067, 1999) and Grisvard (J Math pures et appl 68: 215–259, 1989).