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arXiv math/0512164math.CO
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围绕矩阵树定理

Around matrix-tree theorem

Yurii Burman, Boris Shapiro

摘要:

推广了经典的矩阵树定理,给出了具有固定2-核的图的子图计数公式。我们使用这个推广得到一个模拟的矩阵树定理的根系$D_n$(经典的定理对应于$A_n$的情况)。几个副产品的开发技术,如一个新的公式的多元Tutte多项式的专业化,是独立的利益。

英文摘要:

Generalizing the classical matrix-tree theorem we provide a formula counting subgraphs of a given graph with a fixed 2-core. We use this generalization to obtain an analog of the matrix-tree theorem for the root system $D_n$ (the classical theorem corresponds to the $A_n$-case). Several byproducts of the developed technique, such as a new formula for a specialization of the multivariate Tutte polynomial, are of independent interest.

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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