OAI/NumberTheory/TwoPoint/Fourier/MajorArcRational.lean

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4 declarations, 0 contain sorry, 0 declared as axioms

Resolving a rational additive phase into its residue classes before the multiplicative character expansion. Only a factor equal to the modulus is lost; no Gauss-sum estimate is needed for the application.

  1. lemma OAI.TwoPointCorrelations.major_arc_rational_character line 15
  2. lemma OAI.TwoPointCorrelations.major_arc_residue_partition line 24
  3. lemma OAI.TwoPointCorrelations.major_arc_rational_sum_norm line 44
  4. theorem OAI.TwoPointCorrelations.major_arc_typical_rational_bound line 56

    Source documentation

    A common bound for the reduced, twisted intervals controls the rational frequency with the exact modulus loss.

    theorem major_arc_typical_rational_bound {ι : Type*} (J : Finset ι)
        (P : ι → Finset ℕ) (hP : ∀ j ∈ J, ∀ p ∈ P j, p.Prime)
        (F : ℕ → ℂ)
        (hF : ∀ a b, 0 < a → 0 < b → F (a * b) = F a * F b)
        (hFb : OneBounded F) (q X H : ℕ) [NeZero q] (r : ℤ) (K : ℝ)
        (havoid : ∀ b : ZMod q, mrtPrimeAvoids (J.biUnion P) (b.val.gcd q))
        (hK : ∀ (b : ZMod q) (χ : DirichletCharacter ℂ (q / b.val.gcd q)),
          (b.val.gcd q : ℝ) * shortExponentialIntegral
            (mrtTypicalCoefficient J P (twistByCharacter F χ))
            (X / b.val.gcd q + 1) (H / b.val.gcd q + 1) 0 + X ≤ K) :
        shortExponentialIntegral (mrtTypicalCoefficient J P F) X H ((r : ℝ) / q) ≤
          (q : ℝ) * K := by
    …

    Mentions: OAI.TwoPointCorrelations.OneBounded, OAI.TwoPointCorrelations.mrtPrimeAvoids, OAI.TwoPointCorrelations.shortExponentialIntegral, OAI.TwoPointCorrelations.mrtTypicalCoefficient, OAI.TwoPointCorrelations.twistByCharacter