OAI/Probability/SLE/Mass/MassCompensatorMesh.lean

GitHub source file

12 declarations, 0 contain sorry, 0 declared as axioms

The deterministic quadratic-error estimate for the prescribed dyadic potential compensator. A finite terminal limit controls the growing horizon.

  1. lemma OAI.SLEExactGauge.mass_path_uniformContinuous line 18

    Source documentation

    A continuous mass path with a finite terminal limit is uniformly continuous even though the compensator mesh horizon grows to infinity.

    lemma mass_path_uniformContinuous (A : ℝ≥0 → ℝ) (L : ℝ)
        (hc : Continuous A) (hl : Tendsto A atTop (𝓝 L)) : UniformContinuous A := by
    …
  2. def OAI.SLEExactGauge.compensatorMeshTime line 23
  3. lemma OAI.SLEExactGauge.compensatorMeshTime_zero line 26
  4. lemma OAI.SLEExactGauge.compensatorMeshTime_mono line 29
  5. lemma OAI.SLEExactGauge.compensatorMeshTime_dist line 33
  6. lemma OAI.SLEExactGauge.compensatorMeshTime_small_increments line 41
  7. def OAI.SLEExactGauge.compensatorQuadraticError line 57
  8. lemma OAI.SLEExactGauge.compensatorQuadraticError_nonneg line 61
  9. lemma OAI.SLEExactGauge.compensatorQuadraticError_le line 65
  10. lemma OAI.SLEExactGauge.compensatorQuadraticError_le_terminal_sq line 87
  11. theorem OAI.SLEExactGauge.compensatorQuadraticError_tendsto_zero line 99

    Source documentation

    The accumulated squared mass increments vanish for the exact growing horizon and dyadic mesh used by the paper's potential formula.

    theorem compensatorQuadraticError_tendsto_zero (A : ℝ≥0 → ℝ) (L : ℝ)
        (hm : Monotone A) (h0 : A 0=0) (hc : Continuous A)
        (hl : Tendsto A atTop (𝓝 L)) (hb : ∀ t, A t ≤ L) :
        Tendsto (compensatorQuadraticError A) atTop (𝓝 0) := by
    …

    Mentions: OAI.SLEExactGauge.compensatorQuadraticError

  12. theorem OAI.SLEExactGauge.compensatorQuadraticError_mean_tendsto_zero line 118

    Source documentation

    Dominated convergence for the exact quadratic mesh error; the bound requires only the second terminal moment, not a uniform time horizon.

    theorem compensatorQuadraticError_mean_tendsto_zero
        {Ω : Type*} [MeasurableSpace Ω] (P : Measure Ω)
        (A : ℝ≥0 → Ω → ℝ) (L : Ω → ℝ)
        (hA : ∀ t, Measurable (A t)) (hL : Integrable (fun ω => L ω^2) P)
        (hp : ∀ᵐ ω ∂P, Monotone (fun t => A t ω) ∧ A 0 ω=0 ∧
          Continuous (fun t => A t ω) ∧ Tendsto (fun t => A t ω) atTop (𝓝 (L ω)) ∧
          ∀ t, A t ω ≤ L ω) :
        Tendsto (fun n => ∫ ω, compensatorQuadraticError (fun t => A t ω) n ∂P)
          atTop (𝓝 0) := by
    …

    Mentions: OAI.SLEExactGauge.compensatorQuadraticError