A characterisation of Lie algebras amongst anti-commutative algebras

A characterisation of Lie algebras amongst anti-commutative algebras
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反交换代数中李代数的表征

DOI:
10.1016/j.jpaa.2019.02.018
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发表时间:
2017
影响因子:
0.8
通讯作者:
T. Linden
T. Linden
中科院分区:
数学2区
文献类型:
--
作者:
Xabier Garc'ia;T. Linden

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设 K 为无限域。我们证明,如果各种反交换的 K 代数(不一定是结合的,其中 x x= 0 是恒等式)是局部代数笛卡尔闭集,那么它一定是 K 上的各种李代数。特别是,李 K 是最大的此类代数。因此,对于给定的反交换 K 代数变体,雅可比恒等式变得等价于一个分类条件:当且仅当 V 是反交换 K 代数的局部代数笛卡尔闭变体的子变体时,它才是 V 中的恒等式。这是基于以下结果:反交换 K 代数的代数相干簇要么是李代数的簇,要么是 K 上的反结合代数的簇。
Let K be an infinite field. We prove that if a variety of anti-commutative K-algebras—not necessarily associative, where x x= 0 is an identity—is locally algebraically cartesian closed, then it must be a variety of Lie algebras over K. In particular, Lie K is the largest such. Thus, for a given variety of anti-commutative K-algebras, the Jacobi identity becomes equivalent to a categorical condition: it is an identity in V if and only if V is a subvariety of a locally algebraically cartesian closed variety of anti-commutative K-algebras. This is based on a result saying that an algebraically coherent variety of anti-commutative K-algebras is either a variety of Lie algebras or a variety of anti-associative algebras over K.
DOI: 10.1007/978-1-4612-9839-7
发表时间: 1971
期刊: --
影响因子: --
作者:
S. Lane
通讯作者: S. Lane