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arXiv 1709.04793math.RA
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不存在低维的刚性丝状李代数

There are no rigid filiform Lie algebras of low dimension

Paulo Tirao, Sonia Vera

摘要:

证明了在维数小于或等于11的(丝状)李代数簇中不存在刚性复丝状李代数。更精确地说,我们表明,在任何欧几里德邻域的丝状李括号(低维),有一个非同构的丝状李括号。其次,通过构建非平凡的线性变形在Zagliki开稠密集的各种filiform李代数的尺寸为9,10和11。(In这是众所周知的。

英文摘要:

We prove that there are no rigid complex filiform Lie algebras in the variety of (filiform) Lie algebras of dimension less than or equal to 11. More precisely we show that in any Euclidean neighborhood of a filiform Lie bracket (of low dimension), there is a non-isomorphic filiform Lie bracket. This follows by constructing non trivial linear deformations in a Zariski open dense set of the variety of filiform Lie algebras of dimension 9, 10 and 11. (In lower dimensions this is well known.)

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