本文对对偶扩张代数的性质作了有意义的研究。
In this paper, some useful properties of dual extension algebras are considered.
我们给出了有限维对称自对偶色李代数可以双扩张的充分条件，从而在上同调意义下解决了这类色李代数的分类问题；
We give a sufficient condition for a finite dimensional symmetric self-dual Lie color algebras to be a double extension, thus we solve its classification in the sense of cohomology;
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