A Class of Homogeneous Einstein Manifolds*
A Class of Homogeneous Einstein Manifolds*
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一类齐次爱因斯坦流形*
DOI:
10.1007/s11401-005-0032-0
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
Ke Liang
中科院分区:
文献类型:
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作者:
Yifang Kang;Ke Liang
AbstractA Riemannian manifold (M, g) is called Einstein manifold if its Ricci tensor satisfiesr=c⋅gfor some constantc. General existence results are hard to obtain, e.g., it is as yet unknown whether every compact manifold admits an Einstein metric. A natural approach is to impose additional homogeneous assumptions. M. Y. Wang and W. Ziller have got some results on compact homogeneous spaceG/H. They investigate standard homogeneous metrics, the metric induced by Killing form onG/H, and get some classification results. In this paper some more general homogeneous metrics on some homogeneous spaceG/Hare studies, and a necessary and sufficient condition for this metric to be Einstein is given. The authors also give some examples of Einstein manifolds with non-standard homogeneous metrics.
DOI:
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发表时间:
2005
期刊:
影响因子:
--
作者:
T. Kobayashi;T. Oshima
通讯作者:
T. Oshima