OAI/Probability/SLE/Geometry/RandomSpatialTesting.lean
9 declarations, 0 contain sorry, 0 declared as axioms
Deterministic spatial tests in an eventwise conditional measure identity can be replaced by arbitrary nonnegative past-measurable spatial tests. The proof compares the two joint measures on measurable rectangles.
- def
OAI.SLEExactGauge.pairedMeasureline 18 - lemma
OAI.SLEExactGauge.pairedMeasure_measurableline 22 - lemma
OAI.SLEExactGauge.pairedMeasure_rectangleline 32 - lemma
OAI.SLEExactGauge.pairedMeasure_lintegralline 46 - lemma
OAI.SLEExactGauge.finite_spatial_test_measurableline 57 - lemma
OAI.SLEExactGauge.measurable_measure_restrictline 67 - theorem
OAI.SLEExactGauge.conditional_random_spatial_test_finiteline 79Source documentation
Finite mean kernels that agree after restriction to every past event agree on every nonnegative joint past/spatial test. Pointwise masses may be unbounded; only their total mean must be finite.
theorem conditional_random_spatial_test_finite {Ω X : Type*} [mΩ : MeasurableSpace Ω] [MeasurableSpace X] (m : MeasurableSpace Ω) (hm : m ≤ mΩ) (P : @Measure Ω mΩ) (μ ν : Ω → Measure X) (hμ : @Measurable Ω (Measure X) mΩ inferInstance μ) (hν : @Measurable Ω (Measure X) mΩ inferInstance ν) (hμfin : ∀ ω, IsFiniteMeasure (μ ω)) (hνfin : ∀ ω, IsFiniteMeasure (ν ω)) (hmean : P.bind μ univ < ∞) (hevent : ∀ A : Set Ω, MeasurableSet[m] A → (P.restrict A).bind μ = (P.restrict A).bind ν) (f : Ω × X → ℝ≥0∞) (hf : @Measurable (Ω × X) ℝ≥0∞ (m.prod inferInstance) _ f) : ∫⁻ ω, ∫⁻ x, f (ω,x) ∂μ ω ∂P = ∫⁻ ω, ∫⁻ x, f (ω,x) ∂ν ω ∂P := by … - theorem
OAI.SLEExactGauge.conditional_random_spatial_test_online 123Source documentation
A local version for a fixed finite spatial set, suitable for compact restrictions of locally finite random Radon measures.
theorem conditional_random_spatial_test_on {Ω X : Type*} [mΩ : MeasurableSpace Ω] [MeasurableSpace X] (m : MeasurableSpace Ω) (hm : m ≤ mΩ) (P : @Measure Ω mΩ) (μ ν : Ω → Measure X) (hμ : @Measurable Ω (Measure X) mΩ inferInstance μ) (hν : @Measurable Ω (Measure X) mΩ inferInstance ν) (K : Set X) (hK : MeasurableSet K) (hμK : ∀ ω, μ ω K < ∞) (hνK : ∀ ω, ν ω K < ∞) (hmean : P.bind μ K < ∞) (hevent : ∀ A : Set Ω, MeasurableSet[m] A → (P.restrict A).bind μ = (P.restrict A).bind ν) (f : Ω × X → ℝ≥0∞) (hf : @Measurable (Ω × X) ℝ≥0∞ (m.prod inferInstance) _ f) : … - theorem
OAI.SLEExactGauge.conditional_random_spatial_testline 159Source documentation
Countably many finite-mean spatial pieces suffice; neither random measure needs finite mass on the entire space.
theorem conditional_random_spatial_test {Ω X : Type*} [mΩ : MeasurableSpace Ω] [MeasurableSpace X] (m : MeasurableSpace Ω) (hm : m ≤ mΩ) (P : @Measure Ω mΩ) (μ ν : Ω → Measure X) (hμ : @Measurable Ω (Measure X) mΩ inferInstance μ) (hν : @Measurable Ω (Measure X) mΩ inferInstance ν) (K : ℕ → Set X) (hKm : ∀ n, MeasurableSet (K n)) (hdis : Pairwise (fun i j => Disjoint (K i) (K j))) (hcover : ⋃ n, K n = univ) (hμK : ∀ n ω, μ ω (K n) < ∞) (hνK : ∀ n ω, ν ω (K n) < ∞) (hmean : ∀ n, P.bind μ (K n) < ∞) (hevent : ∀ A : Set Ω, MeasurableSet[m] A → (P.restrict A).bind μ = (P.restrict A).bind ν) …