$p$-adic quotient sets

Stephan Ramon Garcia, Yu Xuan Hong, Florian Luca +4

For $A\subseteq \mathbb{N}$, the question of when $R(A)=\{a/a^{\prime }:a,a^{\prime }\in A\}$ is dense in the positive real numbers ${\mathbb{R}}_{+}$ has been examined by many authors over the y…