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arXiv 2107.09149math.CO
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关于Young格中区间的generating function

On the generating function for intervals in Young's lattice

Faqruddin Azam, Edward Richmond

摘要:

本文研究了一类系数为多项式的生成函数,它能枚举Young格的低阶理想中的划分。我们的主要结果是,这个家庭满足一个合理的递归,因此是有理函数。作为应用,我们计算了定长“平均”划分的低阶理想的基数的渐近行为,并给出了这个结果与Grassmannian及其Schubert簇的同调解释.

英文摘要:

In this paper, we study a family of generating functions whose coefficients are polynomials that enumerate partitions in lower order ideals of Young's lattice. Our main result is that this family satisfies a rational recursion and are therefore rational functions. As an application, we calculate the asymptotic behavior of the cardinality of lower order ideals for the ``average" partition of fixed length and give a homological interpretation of this result in relation to Grassmannians and their Schubert varieties.

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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