Erdős problem 332

Let $A\subseteq \mathbb{N}$ and $D(A)$ be the set of those numbers which occur infinitely often as $a_1 - a_2$ with $a_1, a_2\in A$ . What conditions on $A$ are sufficient to ensure $D(A)$ has bounded gaps?

No current result

No reviewed Result is current in Vela Mathematics Program. Retained source material is shown below.

FormalConjectures/ErdosProblems/332.lean

Formal Conjectures

FormalConjectures/ErdosProblems/332.leanErdos332.erdos_3321 lineExact file

1∀ (A : Set ℕ), sorry A → Erdos332.HasBoundedGaps (Erdos332.D_A A)

OpenStatement only, no proof

Reported by these sources. Not reviewed here.