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arXiv 2007.01829math.RA
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幂零$\mathfrak{CD}$ -代数的几何分类

The geometric classification of nilpotent $\mathfrak{CD}$-algebras

Ivan Kaygorodov, Mykola Khrypchenko

摘要:

给出了复$4$ -维幂零$\mathfrak{CD}$ -代数的几何分类.相应的几何簇具有18维,并分解成由两参数代数族和四参数代数族的Zebraki闭包确定的$2$不可约分量(见定理2)。特别地,不存在刚性的$4$维复幂零$\mathfrak{CD}$ -代数.

英文摘要:

We give a geometric classification of complex $4$-dimensional nilpotent $\mathfrak{CD}$-algebras. The corresponding geometric variety has dimension 18 and decomposes into $2$ irreducible components determined by the Zariski closures of a two-parameter family of algebras and a four-parameter family of algebras (see Theorem 2). In particular, there are no rigid $4$-dimensional complex nilpotent $\mathfrak{CD}$-algebras.

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