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arXiv 1306.5203math.DG
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负里奇曲率的非对称Einstein解流形的新例子

New examples of non-symmetric Einstein solvmanifolds of negative Ricci curvature

Megan M. Kerr

摘要:

我们通过结合两种技术得到了非对称爱因斯坦解流形的新例子。在\cite{T2}中,H. Tamaru构造了新的{ \em attached} solvmanifold,它们是对应于非紧对称空间的solvmanifold的子流形,赋予了自然度量.扩展这种结构,我们将其应用到{ \em关联} solvmanifold,描述在\cite{GK},通过修改相应的非紧对称空间的可解李代数的代数结构。我们的新例子是具有高幂零性的幂零根的爱因斯坦解流形,它在几何上不同于非紧对称空间及其子流形。

英文摘要:

We obtain new examples of non-symmetric Einstein solvmanifolds by combining two techniques. In \cite{T2}, H. Tamaru constructs new {\em attached} solvmanifolds, which are submanifolds of the solvmanifolds corresponding to noncompact symmetric spaces, endowed with a natural metric. Extending this construction, we apply it to {\em associated} solvmanifolds, described in \cite{GK}, obtained by modifying the algebraic structure of the solvable Lie algebras corresponding to noncompact symmetric spaces. Our new examples are Einstein solvmanifolds with nilradicals of high nilpotency, which are geometrically distinct from noncompact symmetric spaces and their submanifolds.

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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