Some gim algebras and the associated indefinite Kac–Moody algebras

Some gim algebras and the associated indefinite Kac–Moody algebras
复制标题

一些 gim 代数和相关的不定 Kac–Moody 代数

DOI:
10.1016/j.jalgebra.2014.11.012
复制
发表时间:
2015-03
期刊:
影响因子:
0.9
通讯作者:
Youjun Tan
Youjun Tan
中科院分区:
数学3区
文献类型:
--
作者:
Rui Lv;Youjun Tan

文献摘要

参考文献

相似文献

设A [2]是ADE型Cartan矩阵A的二重仿射化。与广义交矩阵代数gim(A [2])相关联的是两个不定Kac-Moody代数g(A [2]<$)和g(A [2]<$τ),其中A [2]<$是A [2]的覆盖矩阵,A [2]<$τ由g(A [2]<$)的图自同构τ得到.证明了g(A [2]<$τ)的非迷向正虚根与g(A [2]<$)的非迷向正虚根之间存在一个双射,该双射可用来刻画0-根空间和gim(A [2])的中心.确定了gim(A [2])的导子,它们可以推广到g(A [2]<$)的导子.
Abstract Let A [2] be the 2-fold affinization of a Cartan matrix A of ADE type. Associated to the generalized intersection matrix algebra gim (A [2]) there are two indefinite Kac–Moody algebras g (A [2]˜) and g (A [2]˜ τ), where A [2]˜ is the covering matrix of A [2] and A [2]˜ τ is obtained from a diagram automorphism τ of g (A [2]˜). We show that there is a bijection between non-isotropic positive imaginary roots of g (A [2]˜ τ) and those of g (A [2]˜), which is applied to describe the 0-root space and the center of gim (A [2]). Derivations of gim (A [2]) which can be extended to derivations of g (A [2]˜) are determined.
DOI: 10.4153/cjm-1976-022-x
发表时间: 1976-02
期刊: Canadian Journal of Mathematics
影响因子: --
作者:
S. Berman
通讯作者: S. Berman
DOI: 10.1080/00927872.2012.660262
发表时间: 2013-05
影响因子: 0.7
作者:
Rui Lv;Youjun Tan
通讯作者: Rui Lv;Youjun Tan
DOI: --
发表时间: 1995-04
期刊: Smart Polymer Catalysts and Tunable Catalysis
影响因子: --
作者:
R. Moody;A. Pianzola
通讯作者: R. Moody;A. Pianzola
DOI: 10.1017/cbo9780511626234
发表时间: 1990
期刊: --
影响因子: --
作者:
V. Kac
通讯作者: V. Kac
DOI: 10.1007/bf00147350
发表时间: 1990-09
影响因子: 0.5
作者:
R. Moody;S. Rao;T. Yokonuma
通讯作者: R. Moody;S. Rao;T. Yokonuma