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arXiv · 1807.01665

A note on the sum of reciprocals

Yuchen Ding·Yu-Chen Sun
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Abstract

For a fixed positive integer $m$ and any partition $m = m_1 + m_2 + \cdots + m_e$ , there exists a sequence $\{n_{i}\}_{i=1}^{k}$ of positive integers such that $$m=\frac{1}{n_{1}}+\frac{1}{n_{2}}+\cdots+\frac{1}{n_{k}},$$ with the property that partial sums of the series $\{\frac{1}{n_i}\}_{i=1}^{k}$ can only represent the integers with the form $\sum_{i\in I}m_i$, where $I\subset\{1,...,e\}$.

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Yuchen Ding, Yu-Chen Sun. 2018-07-04. A note on the sum of reciprocals. https://doi.org/10.1017/s0004972719000558

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