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Abstract
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By establishing a unified estimate of the twisted Kohn–Morrey–Hörmander estimate and the
-pseudoconvex
Ahn–Zampieri estimate, we discuss variants of Property
of Catlin and
Property
of McNeal on the boundary of a smooth pseudoconvex domain in
for
certain high level forms. These variant conditions on the one side, imply
-compactness of
the
-Neumann
operator on the associated domain, on the other side, are different from the classical Property
and
Property
.
As an application of our result, we show that if the Hausdorff
-dimensional
measure of the weakly pseudoconvex points on the boundary
of a smooth bounded pseudoconvex domain is zero, then the
-Neumann
operator
is
-compact
on
-level
forms. This result generalizes Boas and Sibony’s results on
-level
forms.
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Keywords
$\bar\partial$-Neumann operator, compactness estimates,
pseudoconvex domains
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Mathematical Subject Classification
Primary: 32W05, 35N15
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Milestones
Received: 3 August 2020
Revised: 22 February 2021
Accepted: 3 May 2021
Published: 17 September 2021
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