OAI/Analysis/FiniteFactor/Sampling/TestedSelfMoment.lean

GitHub source file

5 declarations, 0 contain sorry, 0 declared as axioms

  1. theorem OAI.FiniteFactor.sampling_square_integrable line 11

    Source documentation

    A bounded measurable real function has an integrable square on a finite measure.

    theorem sampling_square_integrable {Ω : Type*} [MeasurableSpace Ω] (μ : Measure Ω)
        [IsFiniteMeasure μ] (f : Ω → ℝ) (C : ℝ) (hm : Measurable f)
        (hb : ∀ x, 0 ≤ f x ∧ f x ≤ C) : Integrable (fun x => f x ^ 2) μ := by
    …
  2. theorem OAI.FiniteFactor.samplingWeight_square_integrable line 20

    Source documentation

    Squared weights are integrable jointly, permitting the source's Fubini step.

    theorem samplingWeight_square_integrable (b : Bool) (h α : ℝ) (hh : 0 < h) (hα : 0 < α) :
        Integrable (fun p : ℝ × ℝ => samplingWeight b h α p.1 p.2 ^ 2)
          (unitIntervalMeasure.prod unitIntervalMeasure) :=
    …

    Mentions: OAI.FiniteFactor.samplingWeight, OAI.FiniteFactor.unitIntervalMeasure

  3. theorem OAI.FiniteFactor.samplingSecondWeight_square_integral line 28

    Source documentation

    Haar translation preserves the untested self-pair moment in the second orientation, with the source's order of both integrations.

    theorem samplingSecondWeight_square_integral (h α : ℝ) (hh : 0 < h) (hh1 : h < 1)
        (hα : 0 < α) (hα1 : α ≤ 1/2) :
        (∫ s, ∫ t, samplingSecondWeight h α s t ^ 2
          ∂unitIntervalMeasure ∂unitIntervalMeasure) = (2/h)*Real.log (1/(2*α)) := by
    …

    Mentions: OAI.FiniteFactor.samplingSecondWeight, OAI.FiniteFactor.unitIntervalMeasure

  4. theorem OAI.FiniteFactor.samplingTestedFirstWeight_square_integral line 54

    Source documentation

    Tests decrease the diagonal self-pair moment in the first orientation.

    theorem samplingTestedFirstWeight_square_integral (h α : ℝ) (E G : Set ℝ)
        (hh : 0 < h) (hh1 : h < 1) (hα : 0 < α) (hα1 : α ≤ 1/2)
        (hE : MeasurableSet E) (hG : MeasurableSet G) :
        (∫ s, ∫ t, samplingTestedFirstWeight false h α E G s t ^ 2
          ∂unitIntervalMeasure ∂unitIntervalMeasure) ≤ (2/h)*Real.log (1/(2*α)) := by
    …

    Mentions: OAI.FiniteFactor.samplingTestedFirstWeight, OAI.FiniteFactor.unitIntervalMeasure

  5. theorem OAI.FiniteFactor.samplingTestedSecondWeight_square_integral line 74

    Source documentation

    Tests decrease the diagonal self-pair moment in the second orientation.

    theorem samplingTestedSecondWeight_square_integral (h α : ℝ) (E G : Set ℝ)
        (hh : 0 < h) (hh1 : h < 1) (hα : 0 < α) (hα1 : α ≤ 1/2)
        (hE : MeasurableSet E) (hG : MeasurableSet G) :
        (∫ s, ∫ t, samplingTestedSecondWeight h α E G s t ^ 2
          ∂unitIntervalMeasure ∂unitIntervalMeasure) ≤ (2/h)*Real.log (1/(2*α)) := by
    …

    Mentions: OAI.FiniteFactor.samplingTestedSecondWeight, OAI.FiniteFactor.unitIntervalMeasure