雅可比恒等式就是下列等式:

定义

集合 有一个二元运算子及可交换二元运算子满足雅可比恒等式,如果

李代数是满足雅可比恒等式的代数结构的一个主要例子。

注意,满足雅可比恒等式的代数结构不一定满足反交换律

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