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American Journal of Mathematics
Article . 1988 . Peer-reviewed
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Psuedo-Einstein Structures on CR Manifolds

Pseudo-Einstein structures on CR manifolds
Authors: Lee, John M.;

Psuedo-Einstein Structures on CR Manifolds

Abstract

Let M denote a \(2n+1\) dimensional integrable CR manifold of hypersurface type with non-degenerate Levi form. In this paper, the author is interested in the problem of finding a pseudo-hermitian structure for which the Ricci tensor is a scalar multiple of the Levi form. The author terms such as a pseudo-Einstein structure. He shows that if M admits a closed, non-vanishing \((n+1,0))-\)form then M admits such a structure, and the existence of such a form is locally necessary for M to be pseudo- Einstein. It follows that M embeddeable in \({\mathbb{C}}^{n+1}\) implies M is pseudo-Einstein, and the author states some corollaries coming from known resuls about embeddability of CR manifolds. Further, the author presents a characterization of those functions which are locally the real part of CR functions on M. For example, in case \(n\geq 2\), the author shows U is CR pluriharmonic if and only if its covariant \((1-1)-\)Hessian is a pointwise scalar multiple of the Levi form. Another characterization is given in case \(\dim M=3.\) Finally the author relates the existence of a global pseudo-Einstein structure to the vanishing of the first Chern class of the holomorphic tangent bundle of M.

Keywords

Pluriharmonic and plurisubharmonic functions, CR hypersurface, pseudo-hermitian structure, Real submanifolds in complex manifolds, pseudo-Einstein structure, pluriharmonic function, Global differential geometry

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
142
Top 1%
Top 1%
Top 10%
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