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arXiv 1604.01079math.RA
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利用Steinberg代数模型确定任意Leavitt路代数的中心

Using the Steinberg algebra model to determine the center of any Leavitt path algebra

Lisa Orloff Clark, Dolores Martín Barquero, Cándido Martín González, Mercedes Siles Molina

摘要:

给定一个任意图,我们刻画了交换单位环上的Leavitt路代数的中心。我们的证明使用Steinberg代数模型的莱维特路径代数。一个关键要素是图广群的单位空间的紧开不变子集在底层图方面的特征:一个开不变子集是紧的当且仅当其相关的遗传和饱和顶点集满足条件(F)。并给出了该中心的依据。它的基数取决于单位空间的极小紧开不变子集的个数。

英文摘要:

Given an arbitrary graph, we describe the center of its Leavitt path algebra over a commutative unital ring. Our proof uses the Steinberg algebra model of the Leavitt path algebra. A key ingredient is a characterization of compact open invariant subsets of the unit space of the graph groupoid in terms of the underlying graph: an open invariant subset is compact if and only if its associated hereditary and saturated set of vertices satisfies Condition (F). We also give a basis of the center. Its cardinality depends on the number of minimal compact open invariant subsets of the unit space.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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