OAI/NumberTheory/JointDickman/Arithmetic/LargeDivisorReciprocals.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Exceptional large primes attached to nonzero coefficient differences
- theorem
OAI.JointDickman.prime_divisor_card_logline 10 - theorem
OAI.JointDickman.large_prime_divisor_reciprocalsline 24Source documentation
Only logarithmic size, nonvanishing, and the prime cutoff are needed. This applies both to forced third-site roots and to cross-root collisions.
theorem large_prime_divisor_reciprocals {b : ℤ} (hb : b ≠ 0) (S : Finset ℕ) (hS : S ⊆ b.natAbs.primeFactors) {P H : ℝ} (hP : 0 < P) (hcut : ∀ p ∈ S, P ≤ (p : ℝ)) (hsize : (b.natAbs : ℝ) ≤ Real.exp H) : ∑ p ∈ S, 1/(p : ℝ) ≤ H/(Real.log 2*P) := by …