<p>We prove several Sobolev-type inequalities related to the <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\({\bar \partial}\)</EquationSource> <EquationSource Format="MATHML"><math display="block"> <mrow> <mrow> <mover> <mi mathvariant="normal">∂</mi> <mo stretchy="false">¯</mo> </mover> </mrow> </mrow> </math></EquationSource> </InlineEquation>-operator on bounded domains in ℂ<sup><i>n</i></sup>, which can be viewed as a <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\({\bar \partial}\)</EquationSource> <EquationSource Format="MATHML"><math display="block"> <mrow> <mrow> <mover> <mi mathvariant="normal">∂</mi> <mo stretchy="false">¯</mo> </mover> </mrow> </mrow> </math></EquationSource> </InlineEquation>-version of the classical Sobolev inequality and its various generalizations, and apply them to derive a generalization of the Sobolev inequality with trace in ℝ<sup><i>n</i></sup>. As applications to complex analysis, we get an integral form of maximum modulus principle for holomorphic functions, and an improvement of Hörmander’s <i>L</i><sup>2</sup>-estimate for <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\({\bar \partial}\)</EquationSource> <EquationSource Format="MATHML"><math display="block"> <mrow> <mrow> <mover> <mi mathvariant="normal">∂</mi> <mo stretchy="false">¯</mo> </mover> </mrow> </mrow> </math></EquationSource> </InlineEquation> on bounded strictly pseudoconvex domains.</p>

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\({\bar \partial}\) Sobolev-type inequality and an improved L2-estimate of \({\bar \partial}\) on bounded strictly pseudoconvex domains

  • Fusheng Deng,
  • Weiwen Jiang,
  • Xiangsen Qin

摘要

We prove several Sobolev-type inequalities related to the \({\bar \partial}\) ¯ -operator on bounded domains in ℂn, which can be viewed as a \({\bar \partial}\) ¯ -version of the classical Sobolev inequality and its various generalizations, and apply them to derive a generalization of the Sobolev inequality with trace in ℝn. As applications to complex analysis, we get an integral form of maximum modulus principle for holomorphic functions, and an improvement of Hörmander’s L2-estimate for \({\bar \partial}\) ¯ on bounded strictly pseudoconvex domains.