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Visualizing the Sum-Product Conjecture https://arxiv.org/abs/2411.08139 #mathNT #mathCO

Visualizing the Sum-Product Conjecture

Let $SPP(n)$ be the set $\{\big(|A+A|,|A\cdot A|\big) : A\subseteq {\mathbb N}, |A|=n \}$, where $A+A$ is the sumset $\{a+b : a,b\in A\}$ and $AA$ is the product set $\{ab : a,b\in A\}$. We prove the value of $SPP(n)$ exactly for $n\le 6$, and compute a large subset of $SPP(n)$ for $n\le 32$. This is a dataset of 1,158,717 sets of positive integers that are addtiively and multiplicatively diverse. We do {\bf not} see evidence in favor of Erdős's Sum-Product Conjecture in our dataset. We include a number of conjectures, open problems, and observations motivated by this dataset, and a large number of color visualizations.

arXiv.org
November 15, 2024 at 3:10 AM · · feed2toot · 0 · 0 · 0
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