The signature of the Ricci curvature of left-invariant Riemannian metrics on four-dimensional lie groups. The unimodular case
The signature of the Ricci curvature of left-invariant Riemannian metrics on four-dimensional lie groups. The unimodular case
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四维李群上左不变黎曼度量的里奇曲率签名。
DOI:
10.3103/s1055134409040038
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发表时间:
2009
影响因子:
--
通讯作者:
Y. Nikonorov
中科院分区:
文献类型:
--
作者:
A. Kremlev;Y. Nikonorov
We obtain a complete classification of all the possible values of the signature of the Ricci curvature of left-invariant Riemannian metrics on four-dimensional unimodular Lie groups.