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arXiv 1702.02305math.CO
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任意亏格的两个顶点映射的计数方法

Methods of Enumerating Two Vertex Maps of Arbitrary Genus

Aaron Chun Shing Chan

摘要:

本文对计算曲线模空间的欧拉示性数的著名的Harer-Zagier公式的一个推广,给出了Goulden-Slofstra公式的另一种证明.本文还给出了Goulden-Slofstra公式的进一步简化。这个替代证明的一部分将在随后的论文中使用,在那里它形成了一个更一般的结果的基础,适用于具有任意数量顶点的某类映射。

英文摘要:

This paper provides an alternate proof to parts of the Goulden-Slofstra formula for enumerating two vertex maps by genus, which is an extension of the famous Harer-Zagier formula that computes the Euler characteristic of the moduli space of curves. This paper also shows a further simplification to the Goulden-Slofstra formula. Portions of this alternate proof will be used in a subsequent paper, where it forms a basis for a more general result that applies for a certain class of maps with an arbitrary number of vertices.

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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