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arXiv math/0602315math.RAmath.QA
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图的Koszul代数

Koszul algebras associated to graphs

Dmitri Piontkovski

摘要:

与图有关的二次代数是由I. Gelfand,S. Gelfand和Retakh与非交换多项式的分解。在这里,我们表明,对于每个图与罕见的三角形子图,相应的二次代数是一个Koszul域的整体维数等于图的顶点数。

英文摘要:

Quadratic algebras associated to graphs have been introduced by I. Gelfand, S. Gelfand, and Retakh in connection with decompositions of noncommutative polynomials. Here we show that, for each graph with rare triangular subgraphs, the corresponding quadratic algebra is a Koszul domain with global dimension equal to the number of vertices of the graph.

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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