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Lie algebras graded by the weight system (Θn,sln)
Journal of Algebra ( IF 0.8 ) Pub Date : 2021-04-16 , DOI: 10.1016/j.jalgebra.2021.04.007
Alexander Baranov , Hogir M. Yaseen

A Lie algebra L is said to be (Θn,sln)-graded if it contains a simple subalgebra g isomorphic to sln such that the g-module L decomposes into copies of the adjoint module, the trivial module, the natural module V, its symmetric and exterior squares S2V and 2V and their duals. We describe the multiplicative structures and the coordinate algebras of (Θn,sln)-graded Lie algebras for n5, classify these Lie algebras and determine their central extensions.



中文翻译:

由权重系统分级李代数(Θ ÑSL Ñ

一个李代数L据说是Θñslñ-分级,如果它包含一个简单的子代数 G 同构 sñ 这样 G模块L分解为伴随模块,平凡模块,自然模块V,其对称平方和外部平方的副本小号2个伏特2个伏特和他们的对偶。我们描述了乘法结构和坐标代数Θñslñ的李代数 ñ5,对这些李代数进行分类并确定其中心扩展。

更新日期:2021-04-22
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