最后一部分中，我们讨论左对称代数和李代数上的左对称结构在着色李超代数中进一步的推广。

In the last part, we further generalize left symmetric algebra and left symmetric structure on Lie algebras into Lie color algebras.

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通过研究双对称代数的对偶结构，主要讨论双对称余代数的张量积及双对称代数和双对称余代数之间的对偶关系。

The tensor products of double-symmetric coalgebras and the dual relationships between double-symmetric algebras and double-symmetric coalgebras are discussed.

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本文给出线性代数方程组反问题的对称矩阵解，及其通解表达式。

To the inverse problem of the system of linear algebraic equations, tiauthor gives a symmetric matrix solution and the expression of its general solution.

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