The upper logarithmic density of monochromatic subset sums
The upper logarithmic density of monochromatic subset sums
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DOI:
10.1112/mtk.12167
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发表时间:
2021-05
期刊:
影响因子:
0.8
通讯作者:
D. Conlon;J. Fox;H. Pham
中科院分区:
文献类型:
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作者:
D. Conlon;J. Fox;H. Pham
We show that in any two‐coloring of the positive integers there is a color for which the set of positive integers that can be represented as a sum of distinct elements with this color has upper logarithmic density at least (2+3)/4$(2+\sqrt {3})/4$ and this is best possible. This answers a 40‐year‐old question of Erdős.