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arXiv 0904.0104math.DG
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非自然约化的紧李群上的Einstein度量

Einstein metrics on compact Lie groups which are not naturally reductive

Andreas Arvanitoyeorgos, Kunihiko Mori, Yusuke Sakane

摘要:

自然约化的紧李群上的左不变Einstein度量的研究是由J.E. D'Atri和W. 1979年的齐勒。1996年第二作者利用黎曼浸没方法得到了$n \ge 6$在李群SU(n)上的非自然约化Einstein度量。本文证明了紧致单李群SO(n)($n \geq 11$),$Sp(n)$($n \geq 3$),$E_6$,$E_7$,和$E_8$上非自然约化的Einstein度量的存在性.

英文摘要:

The study of left-invariant Einstein metrics on compact Lie groups which are naturally reductive was initiated by J. E. D'Atri and W. Ziller in 1979. In 1996 the second author obtained non-naturally reductive Einstein metrics on the Lie group SU(n) for $n \ge 6$, by using a method of Riemannian submersions. In the present work we prove existence of non-naturally reductive Einstein metrics on the compact simple Lie groups SO(n) ($n \geq 11$), $Sp(n)$ ($n \geq 3$), $E_6$, $E_7$, and $E_8$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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