Partitions and Sylvester waves

Cormac O'Sullivan

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arXiv · 1702.03611

Partitions and Sylvester waves

Cormac O'Sullivan

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Abstract

The restricted partition function $p_N(n)$ counts the partitions of the integer $n$ into at most $N$ parts. In the nineteenth century Sylvester described these partitions as a sum of waves. We give detailed descriptions of these waves and, for the first time, show the asymptotics of the initial waves as $N$ and $n$ both go to infinity at about the same rate. This allows us to see when the initial waves are a good approximation to $p_N(n)$ in this situation. Our proofs employ the saddle-point method of Perron and the dilogarithm.

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BibTeX RIS

Cormac O'Sullivan. 2017-02-13. Partitions and Sylvester waves. https://arxiv.org/abs/1702.03611

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