OAI/Geometry/RCD/Sobolev/FiniteDimensionalBochnerAE.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

A common null set for the finite-dimensional Bochner correction

  1. theorem OAI.RegularPointCoordinates.ae_finite_bochner_shift_nonneg line 16

    Source documentation

    The scalar finite-dimensional Bochner bound, initially available in each fixed direction, holds in every direction outside one null set.

    theorem ae_finite_bochner_shift_nonneg {X : Type*} [MeasurableSpace X] {m : ℕ}
        (μ : Measure X) (B : X → Euclidean m →ₗ[ℝ] Euclidean m →ₗ[ℝ] ℝ)
        (D : X → Euclidean m →ₗ[ℝ] ℝ) (N : ℝ) (hN : 0<N)
        (hBE : ∀ a, ∀ᵐ x ∂μ, (D x a)^2≤N*B x a a) :
        ∀ᵐ x ∂μ, ∀ a b, 0≤B x a a-2*b*D x a+N*b^2 := by
    …

    Mentions: OAI.RegularPointCoordinates.Euclidean

  2. theorem OAI.RegularPointCoordinates.bochnerRadonDensity_diagonal line 34

    Source documentation

    The diagonal bilinear density equals the Radon--Nikodym density of the full positive measure.

    theorem bochnerRadonDensity_diagonal {X : Type*} [MeasurableSpace X] {m : ℕ}
        (μ : Measure X) [SigmaFinite μ] (M : PositiveBilinearMeasure X (Euclidean m))
        (a : Euclidean m) :
        (fun x => bochnerRadonDensity μ M x a a) =ᵐ[μ]
          fun x => ((M.measure a).rnDeriv μ x).toReal := by
    …

    Mentions: OAI.RegularPointCoordinates.PositiveBilinearMeasure, OAI.RegularPointCoordinates.Euclidean, OAI.RegularPointCoordinates.bochnerRadonDensity

  3. theorem OAI.RegularPointCoordinates.shiftedBochnerLowerBound_of_finite_dimension line 45

    Source documentation

    The scalar dimensional inequality gives the full shifted measure lower bound, with no absolute-continuity assumption on its Bochner mass.

    theorem shiftedBochnerLowerBound_of_finite_dimension {X : Type*} [MeasurableSpace X] {m : ℕ}
        (μ : Measure X) [SigmaFinite μ] (M : PositiveBilinearMeasure X (Euclidean m))
        {Ω : Set X} [IsFiniteMeasure (μ.restrict Ω)]
        (ell : Euclidean m →ₗ[ℝ] ℝ) (N : ℝ) (hN : 0<N)
        (hBE : ∀ a, ∀ᵐ x ∂μ.restrict Ω,
          (ell a)^2≤N*bochnerRadonDensity μ M x a a) :
        ShiftedBochnerLowerBound M (μ.restrict Ω) ell N := by
    …

    Mentions: OAI.RegularPointCoordinates.PositiveBilinearMeasure, OAI.RegularPointCoordinates.Euclidean, OAI.RegularPointCoordinates.bochnerRadonDensity, OAI.RegularPointCoordinates.ShiftedBochnerLowerBound