Reflection systems and partial root systems

Reflection systems and partial root systems
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反射系统和部分根系统

DOI:
10.1515/form.2011.013
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发表时间:
2011
影响因子:
0.7
通讯作者:
E. Neher
E. Neher
中科院分区:
数学3区
文献类型:
--
作者:
O. Loos;E. Neher

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摘要我们发展了反射系统的一般理论,更具体地说,部分根系统为有限根系统、Kac-Moody根系统、扩展仿射根系统及其各种推广提供了统一的框架。在这一背景下,基于交换子集和下降中心级数,研究了幂零和幂零的子集。我们证明了对于Kac-Moody根系统,我们的幂零对的概念与Tits在正系和Weyl群方面定义的概念一致。
Abstract We develop a general theory of reflection systems and, more specifically, partial root systems which provide a unifying framework for finite root systems, Kac–Moody root systems, extended affine root systems and various generalizations thereof. Nilpotent and prenilpotent subsets are studied in this setting, based on commutator sets and the descending central series. We show that our notion of a prenilpotent pair coincides, for Kac–Moody root systems, with the one defined by Tits in terms of positive systems and the Weyl group.
局部扩展仿射李代数
DOI: --
发表时间: 2006
期刊: Journal of Algebra 301・1
影响因子: --
作者:
山本顯治;H.Katsurada.;Jun Morita
通讯作者: Jun Morita