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arXiv 0901.1228math.COmath.AC
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用generating functions计算数值半群的个数

Computing the number of numerical semigroups using generating functions

Victor Blanco, Pedro A. Garcia-Sanchez, Justo Puerto

摘要:

本文给出了一种计算给定亏格或Frobenius数的数值半群个数的新方法。我们将生成函数工具应用于有界多面体,对给定亏格(或Frobenius数)和重数的半群进行分类。首先,我们给出了计算这些半群个数的多项式时间复杂度的理论结果。我们还说明了分析的方法的情况下,重3和4,其中一些公式的数量半群的任何亏格和Frobenius数。

英文摘要:

This paper presents a new methodology to count the number of numerical semigroups of given genus or Frobenius number. We apply generating function tools to the bounded polyhedron that classifies the semigroups with given genus (or Frobenius number) and multiplicity. First, we give theoretical results about the polynomial-time complexity of counting the number of these semigroups. We also illustrate the methodology analyzing the cases of multiplicity 3 and 4 where some formulas for the number of numerical semigroups for any genus and Frobenius number are obtained.

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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