Pseudo-Einstein and Q-flat metrics with eigenvalue estimates on CR-hypersurfaces

Pseudo-Einstein and Q-flat metrics with eigenvalue estimates on CR-hypersurfaces
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CR 超曲面上具有特征值估计的伪爱因斯坦和 Q 平坦度量

DOI:
10.1512/iumj.2007.56.3111
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发表时间:
2006
影响因子:
1.1
通讯作者:
Shun
Shun
中科院分区:
数学3区
文献类型:
--
作者:
Jianguo Cao;Shun

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本文利用Kohn关于CR-超曲面的B B -理论,得到CR-几何中的一些新结果.主要定理设M2 n-1是完备Stein流形V2 n中有界强伪凸域Ω的光滑边界.则:(1)当n ≥ 3时,M2 n-1存在一个伪Einstein度规. (2)当n > 2时,M2 n-1有一个CR Q曲率为零的Febriman度量. (3)另外,对于紧的严格伪凸CR流形M3,它的CR Paneitz算子P是闭算子.有一些例子证明了非实强伪凸CR-流形M3,其相应的非实B -算子和Paneitz算子不是闭算子.
In this paper, we will use the Kohn's ∂ b -theory on CR-hypersurfaces to derive some new results in CR-geometry. Main Theorem. Let M 2n-1 be the smooth boundary of a bounded strongly pseudo-convex domain Ω in a complete Stein manifold V 2n . Then: (1) For n ≥ 3, M 2n-1 admits a pseudo-Einstein metric. (2) For n > 2, M 2n-1 admits a Fefferman metric of zero CR Q-curvature. (3) In addition, for a compact strictly pseudoconvex CR emendable 3-manifold M 3 , its CR Paneitz operator P is a closed operator. There are examples of non-emendable strongly pseudoconvex CR-manifolds M 3 , for which the corresponding ∂ b -operator and Paneitz operators are not closed operators.
DOI: 10.4310/mrl.2003.v10.n6.a9
发表时间: 2003-03
影响因子: 1
作者:
C. Fefferman;K. Hirachi
通讯作者: C. Fefferman;K. Hirachi
CR 歧管上的 Yang-Mills 场。
DOI: --
发表时间: 2006
期刊: Journal of Mathematical Physics Vol. 47
影响因子: --
作者:
Y. Giga;N. Umeda;H.Urakawa;H.Urakawa
通讯作者: H.Urakawa