OAI/NumberTheory/EgyptianFractions/ThreePrimeFourierReduction.lean

GitHub source file

4 declarations, 0 contain sorry, 0 declared as axioms

  1. def OAI.Problem337.ThreePrimeFourier.primeFourierSum line 13

    Source documentation

    The ordinary positive-sign prime exponential sum, at the zero-padded cyclic modulus 3*u+1.

    def primeFourierSum (u : ℕ) (r : ZMod (3 * u + 1)) : ℂ :=
    …
  2. def OAI.Problem337.ThreePrimeFourier.primeFourierIntegrand line 18

    Source documentation

    The cubic integrand extracting the ordered prime triples of sum u.

    def primeFourierIntegrand (u : ℕ) (r : ZMod (3 * u + 1)) : ℂ :=
    …
  3. theorem OAI.Problem337.ThreePrimeFourier.weightedSupplyPrimeTriples_eq_fourier line 22

    Source documentation

    The canonical weighted count is exactly the real inverse Fourier sum.

    theorem weightedSupplyPrimeTriples_eq_fourier (u : ℕ) :
        weightedSupplyPrimeTriples u =
          (∑ r, primeFourierIntegrand u r).re / (3 * u + 1 : ℕ) := by
    …

    Mentions: OAI.Problem337.weightedSupplyPrimeTriples, OAI.Problem337.ThreePrimeFourier.primeFourierIntegrand

  4. theorem OAI.Problem337.ThreePrimeFourier.quantitativeThreePrimeLowerBound_of_major_minor line 30

    Source documentation

    The remaining quantitative three-prime assertion follows from explicit major-frequency main terms and minor-frequency errors for the actual prime exponential sums. This theorem does not assert either analytic estimate.

    theorem quantitativeThreePrimeLowerBound_of_major_minor
        (major : (u : ℕ) → Finset (ZMod (3 * u + 1)))
        (c : ℝ) (hc : 0 < c)
        (hmajor : ∀ᶠ u : ℕ in atTop, Odd u →
          (2 * c * (u : ℝ) ^ 2) * (3 * u + 1 : ℕ) ≤
            (∑ r ∈ major u, primeFourierIntegrand u r).re)
        (hminor : ∀ᶠ u : ℕ in atTop, Odd u →
          ‖∑ r ∈ (major u)ᶜ, primeFourierIntegrand u r‖ ≤
            (c * (u : ℝ) ^ 2) * (3 * u + 1 : ℕ)) :
        QuantitativeThreePrimeLowerBound := by
    …

    Mentions: OAI.Problem337.ThreePrimeFourier.primeFourierIntegrand, OAI.Problem337.QuantitativeThreePrimeLowerBound