Skip to content

Erdős problem 312

Does there exist a constant c > 0 such that, for any K > 1, whenever A is a sufficiently large finite multiset of integers with nA1/n>K\sum_{n \in A} 1/n > K there exists some SAS \subseteq A such that 1exp((cK))<nS1/n11 - \exp(-(c*K)) < \sum_{n \in S} 1/n \le 1?

No current result

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

Retained declaration

FormalConjectures/ErdosProblems/312.lean

Formal Conjectures

FormalConjectures/ErdosProblems/312.leanErdos312.erdos_3129 linesExact file
Truec,    0 < c      ∀ (K : ℝ),        1 < KN₀,            ∀ (n : ℕ) (a : Fin n → ℕ),              nN₀ ∧ ∑ i, (↑(a i))⁻¹ > KS, 1 - Real.exp (-(c * K)) < ∑ iS, (↑(a i))⁻¹ ∧ ∑ iS, (↑(a i))⁻¹ ≤ 1
OpenStatement only, no proof

Continue

Search problems.science

Find a Problem, Result, source, or page