OAI/NumberTheory/JointDickman/Analysis/MellinLogWindows.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

Exact logarithmic reparametrization of a short interval

  1. def OAI.JointDickman.logarithmicWindowAverage line 10
  2. theorem OAI.JointDickman.logarithmic_window_width line 14
  3. theorem OAI.JointDickman.logarithmicWindowAverage_endpoints line 30

    Source documentation

    The logarithmic interval has exactly the original arithmetic endpoints.

    theorem logarithmicWindowAverage_endpoints (f : ArithmeticFunction ℂ)
        {x H : ℝ} (hx : 0 < x) (hH : 0 < H) :
        logarithmicWindowAverage f (Real.log ((x + H) / x)) (Real.log x) =
          (∑ n ∈ Ioc ⌊x⌋₊ ⌊x + H⌋₊, f n / (n : ℂ)) /
            (Real.log ((x + H) / x) : ℂ) := by
    …

    Mentions: OAI.JointDickman.logarithmicWindowAverage

  4. theorem OAI.JointDickman.reciprocalShortAverage_eq_logarithmic line 43

    Source documentation

    Before normalization, the reciprocal short average is the exact logarithmic-window sum, with no endpoint error.

    theorem reciprocalShortAverage_eq_logarithmic (f : ArithmeticFunction ℂ)
        {x H : ℝ} (hx : 0 < x) (hH : 0 < H) :
        reciprocalShortAverage f H x =
          ((x * Real.log ((x + H) / x) / H : ℝ) : ℂ) *
            logarithmicWindowAverage f (Real.log ((x + H) / x)) (Real.log x) := by
    …

    Mentions: OAI.JointDickman.reciprocalShortAverage, OAI.JointDickman.logarithmicWindowAverage

  5. theorem OAI.JointDickman.norm_shortAverage_le_logarithmic line 57

    Source documentation

    A hard short average is bounded by its normalized logarithmic window plus the uniform endpoint-scale error.

    theorem norm_shortAverage_le_logarithmic (f : ArithmeticFunction ℂ)
        (hf : ∀ n, ‖f n‖ ≤ 1) {x H : ℝ} (hx : 0 < x) (hH : 0 < H) :
        ‖complexShortAverage f H x‖ ≤
          ‖logarithmicWindowAverage f (Real.log ((x + H) / x)) (Real.log x)‖ +
            (H + 1) / x := by
    …

    Mentions: OAI.JointDickman.logarithmicWindowAverage

  6. theorem OAI.JointDickman.shortAverage_sq_le_logarithmic line 84