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arXiv 2006.02883math.GRmath.RA
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$\mathbb{N}$ -分次李代数的Coabel理想及其对直角Artin李代数的应用

Coabelian ideals in $\mathbb{N}$-graded Lie algebras and applications to right angled Artin Lie algebras

Dessislava H. Kochloukova, Conchita Martínez-Pérez

摘要:

研究了一类$FP_n$-分次李代数的同调有限性.在证明了一些一般性的结果之后,见定理A,推论B和推论C,我们集中讨论一族可以被认为是与图$Γ$相关联的广义Bestvina-Brady群的李代数版本。我们证明了这些李代数的同调有限性可以用图的形式来确定,其方法与群的情况相同。在最后一个版本中,我们纠正了一些错误,特别是定理D的陈述(从$n-1$ -无环性到$n-1 - |w|$ -无环性)。

英文摘要:

We consider homological finiteness properties $FP_n$ of certain $\mathbb{N}$-graded Lie algebras. After proving some general results, see Theorem A, Corollary B and Corollary C, we concentrate on a family that can be considered as the Lie algebra version of the generalized Bestvina-Brady groups associated to a graph $Γ$. We prove that the homological finiteness properties of these Lie algebras can be determined in terms of the graph in the same way as in the group case. In the last version we have corrected some missprints, in particular the statement of Theorem D (from $n-1$-acyclicity to $n-1 - |w|$-acyclicity).

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