<p>In this paper, we consider the logarithmic Sobolev capacity <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\text {Cap}^{\mathbb {H}^n}_{ \log ,\gamma ,p}\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mtext>Cap</mtext> <mrow> <mo>log</mo> <mo>,</mo> <mi>γ</mi> <mo>,</mo> <mi>p</mi> </mrow> <msup> <mrow> <mi mathvariant="double-struck">H</mi> </mrow> <mi>n</mi> </msup> </msubsup> </math></EquationSource> </InlineEquation> in the Heisenberg group <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\mathbb {H}^n\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mrow> <mi mathvariant="double-struck">H</mi> </mrow> <mi>n</mi> </msup> </math></EquationSource> </InlineEquation>, a capacity generated by the logarithmic Sobolev space <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(W^{ \log ,\gamma }_{p}(\mathbb {H}^n)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msubsup> <mi>W</mi> <mi>p</mi> <mrow> <mo>log</mo> <mo>,</mo> <mi>γ</mi> </mrow> </msubsup> <mrow> <mo stretchy="false">(</mo> <msup> <mrow> <mi mathvariant="double-struck">H</mi> </mrow> <mi>n</mi> </msup> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation>, where <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\((\gamma , p)\in (0,\infty )\times [1,\infty )\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo stretchy="false">(</mo> <mi>γ</mi> <mo>,</mo> <mi>p</mi> <mo stretchy="false">)</mo> <mo>∈</mo> <mo stretchy="false">(</mo> <mn>0</mn> <mo>,</mo> <mi>∞</mi> <mo stretchy="false">)</mo> <mo>×</mo> <mo stretchy="false">[</mo> <mn>1</mn> <mo>,</mo> <mi>∞</mi> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation>. In particular, we investigate several properties of the space <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(W^{ \log ,\gamma }_{p}(\mathbb {H}^n)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msubsup> <mi>W</mi> <mi>p</mi> <mrow> <mo>log</mo> <mo>,</mo> <mi>γ</mi> </mrow> </msubsup> <mrow> <mo stretchy="false">(</mo> <msup> <mrow> <mi mathvariant="double-struck">H</mi> </mrow> <mi>n</mi> </msup> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation>, including completeness, min-max estimation and density. In addition, we investigate the properties of the logarithmic Sobolev capacity and the logarithmic perimeter in the Heisenberg group. Furthermore, we deal with the relationship between <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(\text {Cap}^{\mathbb {H}^{n}}_{ \log ,\gamma ,p}\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mtext>Cap</mtext> <mrow> <mo>log</mo> <mo>,</mo> <mi>γ</mi> <mo>,</mo> <mi>p</mi> </mrow> <msup> <mrow> <mi mathvariant="double-struck">H</mi> </mrow> <mi>n</mi> </msup> </msubsup> </math></EquationSource> </InlineEquation> and the Hausdorff capacity in the Heisenberg group. As an application, we prove the corresponding capacity estimate and the tracing principle.</p>

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The logarithmic Sobolev capacity in the Heisenberg group

  • Yingjie Luo,
  • Mingwei Shi,
  • Nan Zhao,
  • Yu Liu

摘要

In this paper, we consider the logarithmic Sobolev capacity \(\text {Cap}^{\mathbb {H}^n}_{ \log ,\gamma ,p}\) Cap log , γ , p H n in the Heisenberg group \(\mathbb {H}^n\) H n , a capacity generated by the logarithmic Sobolev space \(W^{ \log ,\gamma }_{p}(\mathbb {H}^n)\) W p log , γ ( H n ) , where \((\gamma , p)\in (0,\infty )\times [1,\infty )\) ( γ , p ) ( 0 , ) × [ 1 , ) . In particular, we investigate several properties of the space \(W^{ \log ,\gamma }_{p}(\mathbb {H}^n)\) W p log , γ ( H n ) , including completeness, min-max estimation and density. In addition, we investigate the properties of the logarithmic Sobolev capacity and the logarithmic perimeter in the Heisenberg group. Furthermore, we deal with the relationship between \(\text {Cap}^{\mathbb {H}^{n}}_{ \log ,\gamma ,p}\) Cap log , γ , p H n and the Hausdorff capacity in the Heisenberg group. As an application, we prove the corresponding capacity estimate and the tracing principle.