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Erdős problem 829

Erdős Problem 829 (open). Let A⊆NA \subseteq \mathbb{N} be the set of perfect cubes. Is it true that (1A∗1A)(n)≪(log⁡n)O(1)(1_A \ast 1_A)(n) \ll (\log n)^{O(1)}? That is, does there exist a natural number CC such that the number of representations of nn as a sum of two cubes is O((log⁡n)C)O((\log n)^C) as n→∞n \to \infty?

Sources

The source's own material, retained exactly.

9 retained statements36c6d0fef71a

Open selected source

FormalConjectures/ErdosProblems/

829.lean

Retained formal statement2 of 9

Membership in cubes can be witnessed by a bounded cube root, which makes it decidable for concrete values.

FormalConjectures/ErdosProblems/829.leanErdos829.mem_cubes_iff1 lineExact file
∀ (m : ℕ), m ∈ Erdos829.cubes ↔ ∃ k < m + 1, k ^ 3 = m
APIStatement only, no proof