Invariant Einstein metrics on certain compact semisimple Lie groups
Invariant Einstein metrics on certain compact semisimple Lie groups
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某些紧半单李群上的不变爱因斯坦度量
DOI:
10.1016/j.difgeo.2018.04.005
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发表时间:
2018-08
影响因子:
0.5
通讯作者:
Deng Shaoqiang
中科院分区:
文献类型:
--
作者:
Yan Zaili;Deng Shaoqiang
In this paper, we study left invariant Einstein metrics on compact semisimple Lie groups. A new method to construct holonomy irreducible non-naturally reductive Einstein metrics on certain compact semisimple (non-simple) Lie groups is presented. In particular, we show that if G is a classical compact simple Lie group and H is a closed subgroup such that G/H is a standard homogeneous Einstein manifold, then there exist holonomy irreducible non-naturally reductive Einstein metrics on H× G, except for some very special cases. A further interesting result of this paper is that for any compact simple Lie group G, there always exist holonomy irreducible non-naturally reductive Einstein metrics on the compact semisimple Lie groups G n, for any n≥ 4.
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