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A1型扩张仿射Lie代数的分次自同构群
引用本文:陈雪,叶从峰.A1型扩张仿射Lie代数的分次自同构群[J].数学研究,2009,42(2):167-177.
作者姓名:陈雪  叶从峰
作者单位:1. 厦门大学数学科学学院,福建,厦门,361005
2. 福州大学数学与计算机科学学院,福建,福州,350001
基金项目:国家自然科学基金资助项目 
摘    要:文献1]从Euclid空间R^v(v≥1)的一个半格S出发,定义了一个Jordan代数J(S):然后通过Tits—Kantor-Koecher方法由J(S)构造出Lie代数G(J(S)).最后利用G(J(S))得到A1型扩张仿射Lie代数L(J(S)).本文给出v=2,S为格时。A1型扩张仿射Lie代数L(J(S))的Z^2一分次自同构群.

关 键 词:扩张仿射Lie代数  分次自同构群

The Graded Automorphism Group of EALA of Type A1
Chen Xue,Ye Congfeng.The Graded Automorphism Group of EALA of Type A1[J].Journal of Mathematical Study,2009,42(2):167-177.
Authors:Chen Xue  Ye Congfeng
Institution:Chen Xue Ye Congfeng ( 1.School of Mathematical Science, Xia,nen University, Xiamen Fujian 361005; 2.School of Mathematical and Computer Science. Fuzhou University, Fuzhou Fujian 350001 )
Abstract:The authers of 1] define a unitary Jordan algebra J(S) from a semilattice S of Rv (v ≥ 1), and then construct Lie algebra G(J(S)) from the Jordan algebra J(S) by the so-called Tits- Kantor-Koecher construction, last obtain the extended affine Lie algebra of type -A1 (J(S)) from G(J(S)). in this paper we study the Z^2-graded automorphism group of L(J(S)) when v = 2, S is lattice.
Keywords:Extended affine Lie algebra  Graded automorphism group
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