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arXiv 1806.00872math.RAmath.AC
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刻画幂零李代数依赖于它们的$2$ -幂零乘子的维数

Characterizing nilpotent Lie algebras rely on the dimension of their $2$-nilpotent multipliers

Farangis Johari, Peyman Niroomand

摘要:

关于幂零李代数$ L $已有一些结果,研究$ L $的结构依赖于研究它的$2$ -幂零乘子.证明了$ L $的$2$ -幂零乘子的维数等于$ \frac{1}{3} n(n-2)(n-1)+3-s_2(L).$.给出了$ 0\leq s_2(L)\leq 6.$情形下所有幂零李代数的结构特征.

英文摘要:

There are some results on nilpotent Lie algebras $ L $ investigate the structure of $ L $ rely on the study of its $2$-nilpotent multiplier. It is showed that the dimension of the $2$-nilpotent multiplier of $ L $ is equal to $ \frac{1}{3} n(n-2)(n-1)+3-s_2(L).$ Characterizing the structure of all nilpotent Lie algebras has been obtained for the case $ s_2(L)=0.$ This paper is devoted to the characterization of all nilpotent Lie algebras when $ 0\leq s_2(L)\leq 6.$ Moreover, we show that which of them are $2$-capable.

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