OAI/NumberTheory/TwoPoint/Fourier/MinorArcWindowInterval.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

Exact finite cofactor intervals for discrete short-sum origins.

  1. def OAI.TwoPointCorrelations.minorArcWindowInterval line 12

    Source documentation

    The upper cofactor cutoff is exclusive.

    def minorArcWindowInterval (M A k H : ℕ) : Finset ℕ :=
    …
  2. lemma OAI.TwoPointCorrelations.mem_minorArcWindowInterval line 15
  3. lemma OAI.TwoPointCorrelations.minor_arc_interval_length line 27
  4. lemma OAI.TwoPointCorrelations.minor_arc_geometric_mono line 44
  5. lemma OAI.TwoPointCorrelations.minor_arc_geometric_window line 51
  6. lemma OAI.TwoPointCorrelations.minor_arc_four_window_kernel line 60

    Source documentation

    The intersection of four origin windows is again one interval; its length is controlled by the first prime, regardless of the other origins.

    lemma minor_arc_four_window_kernel (M A B C D k l r s H : ℕ)
        (hA : 0 < A) (α : ℝ) :
        ‖∑ m ∈ (minorArcWindowInterval M A k H ∩ minorArcWindowInterval M B l H) ∩
            (minorArcWindowInterval M C r H ∩ minorArcWindowInterval M D s H),
          additiveCharacter α m‖ ≤ minorArcGeometricBound ((H : ℝ) / A + 1) α := by
    …

    Mentions: OAI.TwoPointCorrelations.minorArcWindowInterval, OAI.TwoPointCorrelations.additiveCharacter, OAI.TwoPointCorrelations.minorArcGeometricBound