OAI/NumberTheory/EgyptianFractions/MinorArcRealWindow.lean
2 declarations, 0 contain sorry, 0 declared as axioms
- theorem
OAI.Problem337.MinorArc.majorArcUnion_mono_radiusline 9Source documentation
Enlarging the radius enlarges the explicit finite major-arc union.
theorem majorArcUnion_mono_radius (Q : ℕ) {δ ε : ℝ} (hδε : δ ≤ ε) : ThreePrimeAnalysis.majorArcUnion Q δ ⊆ ThreePrimeAnalysis.majorArcUnion Q ε := by … - theorem
OAI.Problem337.MinorArc.exists_minor_fraction_real_windowline 21Source documentation
Dirichlet approximation in the real parameter window used by minor-arc estimates. The scale is rounded only internally; the theorem exposes the usable real inequalities
R ≤ q ≤ X/Rwithout floor losses.theorem exists_minor_fraction_real_window {X R x : ℝ} (hR : 0 < R) (hXR : 4 * R ≤ X) (hx : x ∈ Set.Icc (0 : ℝ) 1) (hminor : x ∉ ThreePrimeAnalysis.majorArcUnion ⌊R⌋₊ (2 * R / X)) : ∃ a : ℤ, ∃ q : ℕ, R ≤ (q : ℝ) ∧ (q : ℝ) ≤ X / R ∧ 0 < q ∧ IsCoprime a (q : ℤ) ∧ |x - (a : ℝ) / q| ≤ 1 / (q : ℝ) ^ 2 := by …