proposed
reason
Candidate claim vc_7ccc2596d6f3b3f2 imported from artifact packet cap_61973ee16b553d57
finding type
open_question
proposed confidence
0.99
confidence basis
agent-imported candidate claim; reviewer acceptance required
frontiers / frontier
e1271/1271 · statement.attested · reviewer:will-blair · 2026-06-10 · null→null
Reviewable change
back to reviewErdős Problem #510 remains OPEN. Statement: **Chowla's cosine problem** If $A\subset \mathbb{N}$ is a finite set of positive integers of size $N > 0$ then is there some absolute constant $c>0$ and $\theta$ such that $$\sum_{n\in A}\cos(n\theta) < -cN^{1/2}?$$ Topics: analysis. Erdős prize: no. Statement is machine-verified in Lean (formal-conjectures). OEIS: N/A.
accept gate
1 of 4 on recordtimeline
vpr_de753d5f490f6a51Candidate claim vc_7ccc2596d6f3b3f2 imported from artifact packet cap_61973ee16b553d57null→c4bf3ccbvev_cf24be4603efc29bCandidate claim vc_7ccc2596d6f3b3f2 imported from artifact packet cap_61973ee16b553d57proposed
reason
Candidate claim vc_7ccc2596d6f3b3f2 imported from artifact packet cap_61973ee16b553d57
finding type
open_question
proposed confidence
0.99
confidence basis
agent-imported candidate claim; reviewer acceptance required
provenance
proposed by
agent:erdos-spine-ingest
actor type
agent
created at
2026-05-30
target type
finding
affected
inspect finding →Erdős Problem #510 remains OPEN. Statement: **Chowla's cosine problem** If $A\subset \mathbb{N}$ is a finite set of positive integers of size $N > 0$ then is there some absolute constant $c>0$ and $\theta$ such that $$\sum_{n\in A}\cos(n\theta) < -cN^{1/2}?$$ Topics: analysis. Erdős prize: no. Statement is machine-verified in Lean (formal-conjectures). OEIS: N/A.
vf_c339c21f66014a83Read-only frontier; diff not recomputed.
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