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arXiv 1202.0529math.COmath.AG
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可反对称化交换矩阵的分解算法

The Decomposition Algorithm of Skew-symmetrizable Exchange Matrices

Weiwen Gu

摘要:

一些斜对称整数交换矩阵与标记有边曲面的理想(标记)三角剖分相关联。这些交换矩阵允许反对称矩阵的展开。我们开发了一个组合算法,确定如果一个给定的斜对称矩阵是这样的类型。该算法推广了\cite{WG}中的算法。作为推论,我们用这个算法来确定一个给定的可斜对称化矩阵是否具有有限突变类型。

英文摘要:

Some skew-symmetrizable integer exchange matrices are associated to ideal (tagged) triangulations of marked bordered surfaces. These exchange matrices admits unfoldings to skew-symmetric matrices. We develop an combinatorial algorithm that determines if a given skew-symmetrizable matrix is of such type. This algorithm generalizes the one in \cite{WG}. As a corollary, we use this algorithm to determine if a given skew-symmetrizable matrix has finite mutation type.

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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