期刊
ALGEBRA COLLOQUIUM
卷 18, 期 4, 页码 639-646出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S1005386711000484
关键词
symmetrizable generalized intersection matrices; SIM-Lie algebras; Kac-Moody Lie algebras; IM-Lie algebras
资金
- National Natural Science Foundation of China [10325107]
- 973 Program [2006CB805905]
- Southwest Jiaotong University
Associated to every symmetrizable generalized intersection matrix A, we define a Lie algebra, called an SIM-Lie algebra. We prove that SIM-Lie algebras keep unchange under braid-equivalences. Two special cases are considered. In the case when A is a symmetrizable generalized Cartan matrix, we show that the corresponding SIM-Lie algebra is just the Kac-Moody Lie algebra. In another case when A is an intersection matrix, we prove that the corresponding SIM-Lie algebra is just the intersection matrix Lie algebra in the sense of Slodowy.
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