Estimates for the $\bar\partial$-Neumann problem and nonexistence of Levi-flat hypersurfaces in $CP^n$

dc.creatorCao, Jianguo
dc.creatorShaw, Mei-Chi
dc.creatorWang, Lihe
dc.date2003-05-14
dc.date.accessioned2026-07-07T04:58:01Z
dc.date.available2026-07-07T04:58:01Z
dc.descriptionLet $Ω$ be a pseudoconvex domain with $C^2$-smooth boundary in $\mathbb CP^n$. We prove that the $\bar\partial-Neumann operator $N$ exists for $(p,q)$-forms on $Ω$. Furthermore, there exists a $t_0>0$ such that the operators $N$, $\bar\partial^*N$, $\bar\partial N$ and the Bergman projection are regular in the Sobolev space $W^t (\barΩ) $ for $t<t_0$. The boundary estimates above have applications in complex geometry. We use the estimates to prove the nonexistence of $C^{2, α}$ real Levi-flat hypersurfaces in $\mathbb CP^n$. We also show that there exist no non-zero $L^2$-holomorphic $(p, 0)$-forms on any pseudoconcave domain in $\mathbb CP^n$ with $p > 0$.
dc.identifierhttps://arxiv.org/abs/math/0305211
dc.identifierhttp://arxiv.org/abs/math/0305211
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/67470
dc.subjectDifferential Geometry
dc.subjectComplex Variables
dc.titleEstimates for the $\bar\partial$-Neumann problem and nonexistence of Levi-flat hypersurfaces in $CP^n$
dc.typetext

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