Erdős problem 749 · problems.science

Let $\epsilon>0$ . Does there exist $A\subseteq \mathbb{N}$ such that the lower density of $A+A$ is at least $1-\epsilon$ and yet $1_A\ast 1_A(n) \ll_\epsilon 1$ for all $n$ ?

Workspace

Continue locally Open source Sign in to contribute

Open this exact Problem, source revision, and authority Repository in Workbench. This handoff does not clone, switch, upload, or execute anything.

Canvas

public preview

Source#749
→
ResultNone
→
Checks0

Reported activity

Work these sources record against this Problem. Source-reported attribution, not reviewed here.

AI collaborating with humans
Erdős AI contributions wiki · 4-6 Apr, 2026
Machine
GPT-5.4 Thinking
People
Aron Bhalla
Open the source record

Reported activity

Search problems.science