OAI/Probability/InvariantIsing/Cavity/CavityCylinderPenalty.lean
3 declarations, 0 contain sorry, 0 declared as axioms
The finite cavity comparison for cylinder fields. Independent copies are realized by disjoint coordinate tags, preserving both endpoint laws.
- lemma
OAI.InvariantIsing.finite_cylinder_penalty_comparisonline 15 - lemma
OAI.InvariantIsing.cylinder_log_mean_tagline 67 - theorem
OAI.InvariantIsing.finite_cylinder_covariance_penalty_comparisonline 84Source documentation
Only the two covariance kernels matter: disjoint Gaussian copies automatically supply the zero mixed covariance required by interpolation.
theorem finite_cylinder_covariance_penalty_comparison {X : Type*} [Fintype X] [MeasurableSpace X] [MeasurableSingletonClass X] (ν : Measure X) [IsProbabilityMeasure ν] (H V : X → ℝ) (c : ℝ) (C A : X → ℕ →₀ ℝ) (hK : ∀ x y, |cylinderCross (A x) (A y) - cylinderCross (C x) (C y)| ≤ c * (V x + V y)) : (∫ g : ℕ → ℝ, Real.log (∫ x, Real.exp (H x - 2 * c * V x + cylinderField (C x) g) ∂ν) ∂gaussianCoordinates) ≤ ∫ g : ℕ → ℝ, Real.log (∫ x, Real.exp (H x + cylinderField (A x) g) ∂ν) ∂gaussianCoordinates := by …