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arXiv math/0101230math.DG
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H-型李代数的积分结构

Integral Structures on H-type Lie Algebras

G. Crandall, J. Dodziuk

摘要:

本文证明了每一个H型李代数都有一个结构常数为整数的基。这样一个整基的存在通过Mal'cev准则意味着所有单连通H型李群包含余紧格。由于Campbell-Hausdorff公式对于两步幂零李群非常简单,我们实际上可以避免调用Mal'cev准则,并以显式的方式展示我们的格。作为应用,我们计算了H-型群的等周维数。

英文摘要:

In this paper we prove that every H-type Lie algebra possesses a basis with respect to which the structure constants are integers. Existence of such an integral basis implies via the Mal'cev criterion that all simply connected H-type Lie groups contain cocompact lattices. Since the Campbell-Hausdorff formula is very simple for two-step nilpotent Lie groups we can actually avoid invoking the Mal'cev criterion and exhibit our lattices in an explicit way. As an application, we calculate the isoperimetric dimensions of H-type groups.

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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