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arXiv 0711.1373math.COmath.NT
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分拆多项式:渐近性和零点

Partition Polynomials: Asymptotics and Zeros

Robert P. Boyer, William M. Y. Goh

摘要:

令$F_n(x)$为划分多项式$\sum_{k=1}^n p_k(n) x^k$,其中$p_k(n)$为具有$k$部分的$n$的划分的数目。我们强调的计算实验使用度高达$70,000$,发现这些多项式的渐近。令人惊讶的是,$F_n(x)$的渐近有两个规模的订单$n$和$\sqrt{n}$和在三个不同的制度内的单位磁盘。因此,零点收敛到由双对数给出的单位圆盘内的曲线网络。

英文摘要:

Let $F_n(x)$ be the partition polynomial $\sum_{k=1}^n p_k(n) x^k$ where $p_k(n)$ is the number of partitions of $n$ with $k$ parts. We emphasize the computational experiments using degrees up to $70,000$ to discover the asymptotics of these polynomials. Surprisingly, the asymptotics of $F_n(x)$ have two scales of orders $n$ and $\sqrt{n}$ and in three different regimes inside the unit disk. Consequently, the zeros converge to network of curves inside the unit disk given in terms of the dilogarithm.

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