OAI/Probability/SLE/Geometry/FiniteCenteredConsistency.lean

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6 declarations, 0 contain sorry, 0 declared as axioms

Exact consistency of the finite centered laws on the past of an earlier conformal-radius stop. Extended stopping times are exhausted through finite cutoffs; the finite centered laws give the earlier stop finite time almost surely.

  1. lemma OAI.SLEExactGauge.IsCapacityTwoWitness.physicalStoppedGreen_at_or_before line 18
  2. theorem OAI.SLEExactGauge.finiteCenteredLaw_consistent_at_finite_stop line 37

    Source documentation

    Finite-stop consistency holds on the entire earlier stopped past, including events on which the later radius level is never reached.

    theorem finiteCenteredLaw_consistent_at_finite_stop
        {Ω : Type*} [mΩ : MeasurableSpace Ω] {P : Measure Ω} [IsProbabilityMeasure P]
        {B : ℝ≥0 → Ω → ℝ} (hB : IsBrownianReal B P)
        (hBm : Measurable (fun p : ℝ≥0 × Ω => B p.1 p.2))
        (hc : ∀ ω, Continuous (fun t => B t ω)) (hB0 : ∀ ω, B 0 ω = 0)
        (κ : ℝ) (hκ : 0 < κ) (hκ8 : κ < 8)
        (γ : Ω → ℝ≥0 → ℂ) (G F : Ω → ℝ≥0 → ℂ → ℂ)
        (hw : ∀ᵐ ω ∂P, IsCapacityTwoWitness
          (fun t => Real.sqrt κ * B t ω) (γ ω) (G ω) (F ω))
        (z : ℂ) (hz : z ∈ upperHalfPlane) (v V : ℝ) (hv : 0 ≤ v) (hvV : v ≤ V)
        (σ : Ω → ℝ≥0)
        (hσ : IsStoppingTime (Filtration.natural B
    …

    Mentions: OAI.SLEExactGauge.IsCapacityTwoWitness, OAI.SLEExactGauge.upperHalfPlane

  3. lemma OAI.SLEExactGauge.stopped_past_cover_of_ae_finite line 84
  4. theorem OAI.SLEExactGauge.finiteCenteredLaw_earlier_stop_ae_finite line 104

    Source documentation

    Every earlier stop is finite under a later finite centered law, even when it is infinite on a set of positive original probability.

    theorem finiteCenteredLaw_earlier_stop_ae_finite
        {Ω : Type*} [MeasurableSpace Ω] {P : Measure Ω} [IsProbabilityMeasure P]
        {B : ℝ≥0 → Ω → ℝ} (hB : IsBrownianReal B P)
        (hc : ∀ ω, Continuous (fun t => B t ω))
        (κ : ℝ) (hκ : 0 < κ) (hκ8 : κ < 8)
        (γ : Ω → ℝ≥0 → ℂ) (G F : Ω → ℝ≥0 → ℂ → ℂ)
        (hw : ∀ᵐ ω ∂P, IsCapacityTwoWitness
          (fun t => Real.sqrt κ * B t ω) (γ ω) (G ω) (F ω))
        (z : ℂ) (hz : z ∈ upperHalfPlane) (v V : ℝ) (hv : 0 ≤ v) (hvV : v ≤ V)
        (σ : Ω → WithTop ℝ≥0)
        (hbefore : ∀ᵐ ω ∂P, σ ω ≤ radiusLevelTime (γ ω) (G ω) z v) :
        ∀ᵐ ω ∂finiteCenteredLaw P κ B γ G z V, σ ω ≠ ⊤ := by
    …

    Mentions: OAI.SLEExactGauge.IsCapacityTwoWitness, OAI.SLEExactGauge.upperHalfPlane, OAI.SLEExactGauge.radiusLevelTime, OAI.SLEExactGauge.finiteCenteredLaw

  5. theorem OAI.SLEExactGauge.finiteCenteredLaw_consistent_at_extended_stop line 128

    Source documentation

    Extended-stop consistency. The sole geometric requirement is that this stop occur no later than the earlier conformal-radius level almost surely under the original law.

    theorem finiteCenteredLaw_consistent_at_extended_stop
        {Ω : Type*} [mΩ : MeasurableSpace Ω] {P : Measure Ω} [IsProbabilityMeasure P]
        {B : ℝ≥0 → Ω → ℝ} (hB : IsBrownianReal B P)
        (hBm : Measurable (fun p : ℝ≥0 × Ω => B p.1 p.2))
        (hc : ∀ ω, Continuous (fun t => B t ω)) (hB0 : ∀ ω, B 0 ω = 0)
        (κ : ℝ) (hκ : 0 < κ) (hκ8 : κ < 8)
        (γ : Ω → ℝ≥0 → ℂ) (G F : Ω → ℝ≥0 → ℂ → ℂ)
        (hw : ∀ᵐ ω ∂P, IsCapacityTwoWitness
          (fun t => Real.sqrt κ * B t ω) (γ ω) (G ω) (F ω))
        (z : ℂ) (hz : z ∈ upperHalfPlane) (v V : ℝ) (hv : 0 ≤ v) (hvV : v ≤ V)
        (σ : Ω → WithTop ℝ≥0)
        (hσ : IsStoppingTime (Filtration.natural B
    …

    Mentions: OAI.SLEExactGauge.IsCapacityTwoWitness, OAI.SLEExactGauge.upperHalfPlane

  6. theorem OAI.SLEExactGauge.finiteCenteredLaw_consistent_at_radius_stop line 176

    Source documentation

    The cover application: any stopping-time version of the actual radius-v time has exactly the same stopped-past law under every later finite centered measure.

    theorem finiteCenteredLaw_consistent_at_radius_stop
        {Ω : Type*} [mΩ : MeasurableSpace Ω] {P : Measure Ω} [IsProbabilityMeasure P]
        {B : ℝ≥0 → Ω → ℝ} (hB : IsBrownianReal B P)
        (hBm : Measurable (fun p : ℝ≥0 × Ω => B p.1 p.2))
        (hc : ∀ ω, Continuous (fun t => B t ω)) (hB0 : ∀ ω, B 0 ω = 0)
        (κ : ℝ) (hκ : 0 < κ) (hκ8 : κ < 8)
        (γ : Ω → ℝ≥0 → ℂ) (G F : Ω → ℝ≥0 → ℂ → ℂ)
        (hw : ∀ᵐ ω ∂P, IsCapacityTwoWitness
          (fun t => Real.sqrt κ * B t ω) (γ ω) (G ω) (F ω))
        (z : ℂ) (hz : z ∈ upperHalfPlane) (v V : ℝ) (hv : 0 ≤ v) (hvV : v ≤ V)
        (σ : Ω → WithTop ℝ≥0)
        (hσ : IsStoppingTime (Filtration.natural B
    …

    Mentions: OAI.SLEExactGauge.IsCapacityTwoWitness, OAI.SLEExactGauge.upperHalfPlane