论文标题

lie群和均匀空间上双重不变的指标的刚性刚度

Gromov Rigidity of Bi-Invariant Metrics on Lie Groups and Homogeneous Spaces

论文作者

Sun, Yukai, Dai, Xianzhe

论文摘要

格罗莫夫(Gromov)询问与其他任何指标相比,紧凑型谎言组上的双重视指标是否是极端的。在本说明中,我们证明,与左右不变的指标相比,在Gromov的意义上,紧凑型连接的半简单谎言组$ g $的双重不变指标是极端的。实际上,与$ g $紧凑的连接和半简单的紧凑型连接的均匀歧管$ g/h $相同的结果。

Gromov asked if the bi-invariant metrics on a compact Lie group are extremal compared to any other metrics. In this note, we prove that the bi-invariant metrics on a compact connected semi-simple Lie group $G$ are extremal (in fact rigid) in the sense of Gromov when compared to the left-invariant metrics. In fact the same result holds for a compact connected homogeneous manifold $G/H$ with $G$ compact connect and semi-simple.

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