OAI/Geometry/RCD/Sobolev/BochnerSourceUniqueness.lean

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Local uniqueness of the full Bochner measure and its density

  1. theorem OAI.RegularPointCoordinates.bochnerGramSource_unique_restrict line 20
  2. theorem OAI.RegularPointCoordinates.bochnerDensity_unique line 40

    Source documentation

    Local uniqueness of the full source also identifies the density used in a pointwise Hessian estimate, independently of the auxiliary family.

    theorem bochnerDensity_unique [SigmaFinite μ] {Ω S : Set X} (hΩ : MeasurableSet Ω)
        (hS : MeasurableSet S) (K : ℝ) (f g df dg F G : SobolevSpace μ hQ)
        (ν τ : Measure X) [IsFiniteMeasure ν] [IsFiniteMeasure τ]
        (hF : IsMeasureLaplacianOn μ hQ Ω F (bochnerGramSource μ hQ K f g df dg ν.toSignedMeasure))
        (hG : IsMeasureLaplacianOn μ hQ Ω G (bochnerGramSource μ hQ K f g df dg τ.toSignedMeasure))
        (hFG : SobolevSpace.toLp μ hQ F =ᵐ[μ.restrict Ω] SobolevSpace.toLp μ hQ G)
        (χ : X →ᵇ ℝ) {L : ℝ≥0} (hχ : LipschitzWith L χ)
        (hχc : HasCompactSupport (χ : X → ℝ)) (hχΩ : tsupport χ ⊆ Ω)
        (hχ0 : ∀ x, 0≤χ x) (hχ1 : ∀ x ∈ S, χ x=1) :
        (fun x => (ν.rnDeriv μ x).toReal) =ᵐ[μ.restrict S] fun x => (τ.rnDeriv μ x).toReal := by
    …

    Mentions: OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.IsMeasureLaplacianOn, OAI.RegularPointCoordinates.bochnerGramSource, OAI.RegularPointCoordinates.SobolevSpace.toLp