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arXiv math/0001029math.QA
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某些根重数已知的广义Kac-Moody代数

Some Generalized Kac-Moody Algebras With Known Root Multiplicities

Peter Niemann

摘要:

本文从Borcherds的伪怪物李代数出发,构造了一个由六个广义Kac-Moody代数组成的序列,它们的分母公式、根系和所有根重数都可以明确地描述.根系将空间分解为有限的仿射型凸洞,类似于Leech格的情况。作为推论,我们得到了一些双曲李代数,包括AE 3的根重数的强上界。

英文摘要:

Starting from Borcherds' fake monster Lie algebra we construct a sequence of six generalized Kac-Moody algebras whose denominator formulas, root systems and all root multiplicities can be described explicitly. The root systems decompose space into convex holes, of finite and affine type, similar to the situation in the case of the Leech lattice. As a corollary, we obtain strong upper bounds for the root multiplicities of a number of hyperbolic Lie algebras, including AE3.

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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