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arXiv 1006.2240math.RA
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李代数张量平方的若干性质

Some properties on the tensor square of Lie algebras

Peyman Niroomand

摘要:

本文推广和改进了\cite{bl, br}关于李代数张量平方的结果。更精确地说,对于任何具有有限维$L/L^2$的李代数$L$,我们证明了$L\otimes L\cong L\square L\oplus L\wedge L$和$Z^{\wedge}(L)\cap L^2=Z^{\otimes}(L)$。证明了$L\wedge L$同构于$L$的一个覆盖的导出子代数,并给出了它的自由表示.

英文摘要:

In the present paper we extend and improve the results of \cite{bl, br} for the tensor square of Lie algebras. More precisely, for any Lie algebra $L$ with $L/L^2$ of finite dimension, we prove $L\otimes L\cong L\square L\oplus L\wedge L$ and $Z^{\wedge}(L)\cap L^2=Z^{\otimes}(L)$. Moreover, we show that $L\wedge L$ is isomorphic to derived subalgebra of a cover of $L$, and finally we give a free presentation for it.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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