Einstein Spaces with a Conformal Group

Einstein Spaces with a Conformal Group
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具有共形群的爱因斯坦空间

DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
H. Rademacher
H. Rademacher
中科院分区:
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文献类型:
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作者:
W. Kühnel;H. Rademacher

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摘要:具有严格正维数共形群(局部或整体)的伪黎曼爱因斯坦空间是可以分类的。在这篇文章中,我们给出了一个简单而系统的证明。作为一个普遍的推广,这包括Yano和Nagano在黎曼情形下的整体定理(1959年,发表在《数学年鉴》上)和Kerckhove在1988年由K.野水我们推广和统一了以前的结果的情况下,一个不定的度量类推的情况下,正定度量。
Abstract.The pseudo-Riemannian Einstein spaces with a (local or global) conformal group of strictly positive dimension can be classified. In this article we give a straightforward and systematic proof. As a common generalization, this includes the global theorem of Yano and Nagano in the Riemannian case (1959, published in the Annals of Mathematics) and a pseudo-Riemannian analogue proved by Kerckhove in his 1988 thesis under Professor K. Nomizu. We extend and unify the previous results in the case of an indefinite metric by analogy with the case of a positive definite metric.