OAI/NumberTheory/JointDickman/Analysis/MellinPrefixBound.lean

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Bounded-frequency Dirichlet polynomials from uniform prefix errors

  1. lemma OAI.JointDickman.angularMellinPolynomial_cpow line 11
  2. theorem OAI.JointDickman.angularMellinPolynomial_le_of_prefix line 28

    Source documentation

    A uniform prefix error D on [X,4X] yields the explicit bounded-frequency cost (5+3*T)*D/X.

    theorem angularMellinPolynomial_le_of_prefix (a : ℕ → ℂ) {X T D t : ℝ}
        (hX : 0 < X) (hT : 0 ≤ T) (hD : 0 ≤ D) (ht : |t| ≤ T)
        (hprefix : ∀ u ∈ Set.Icc X (4 * X), ‖∑ n ∈ Icc 0 ⌊u⌋₊, a n‖ ≤ D) :
        ‖angularMellinPolynomial (Ioc ⌊X⌋₊ ⌊4 * X⌋₊) a t‖ ≤
          (5 + 3 * T) * D / X := by
    …

    Mentions: OAI.JointDickman.angularMellinPolynomial