OAI/Geometry/RCD/Sobolev/HessianSpanCommutator.lean

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The finite Poisson-span commutator with the original Bochner masses

  1. theorem OAI.RegularPointCoordinates.LocalPoissonHessianActionInput.span_commutator_directional line 18

    Source documentation

    The Hessian action estimate yields the actual commutator error and keeps the full shifted and ordinary Bochner masses explicit.

    theorem LocalPoissonHessianActionInput.span_commutator_directional
        {K : ℝ} {n : ℕ} {hX : NoncollapsedRCD K n X}
        (hinput : LocalPoissonHessianActionInput hX)
        {κ : ℝ} (hκ : 0 ≤ κ) (hK : -κ ≤ K)
        (p : X) (r : ℝ) (hr : 0 < r) (L : ℝ≥0)
        (U : Euclidean (n + 2) →L[ℝ] SobolevSpace (hausdorff n X) hX.quadratic)
        (ell : Euclidean (n + 2) →ₗ[ℝ] ℝ)
        (hU : ∀ v, IsConstantLaplacianOn (hausdorff n X) hX.quadratic
          (ball p (8 * r)) (U v) (ell v))
        (hgrad : ∀ v, ∀ᵐ x ∂(hausdorff n X).restrict (ball p (8 * r)),
          localGamma (hausdorff n X) hX.quadratic (U v) (U v) x ≤ (L : ℝ) ^ 2 * ‖v‖ ^ 2) :
        ∃ M : PositiveBilinearMeasure X (Euclidean (n + 2)),
    …

    Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.LocalPoissonHessianActionInput, OAI.RegularPointCoordinates.Euclidean, OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.hausdorff, OAI.RegularPointCoordinates.IsConstantLaplacianOn, OAI.RegularPointCoordinates.localGamma, OAI.RegularPointCoordinates.PositiveBilinearMeasure

  2. theorem OAI.RegularPointCoordinates.LocalPoissonHessianActionInput.span_commutator line 65

    Source documentation

    The uniform span bound follows by using its common gradient constant.

    theorem LocalPoissonHessianActionInput.span_commutator
        {K : ℝ} {n : ℕ} {hX : NoncollapsedRCD K n X}
        (hinput : LocalPoissonHessianActionInput hX)
        {κ : ℝ} (hκ : 0 ≤ κ) (hK : -κ ≤ K)
        (p : X) (r : ℝ) (hr : 0 < r) (L : ℝ≥0)
        (U : Euclidean (n + 2) →L[ℝ] SobolevSpace (hausdorff n X) hX.quadratic)
        (ell : Euclidean (n + 2) →ₗ[ℝ] ℝ)
        (hU : ∀ v, IsConstantLaplacianOn (hausdorff n X) hX.quadratic
          (ball p (8 * r)) (U v) (ell v))
        (hgrad : ∀ v, ∀ᵐ x ∂(hausdorff n X).restrict (ball p (8 * r)),
          localGamma (hausdorff n X) hX.quadratic (U v) (U v) x ≤ (L : ℝ) ^ 2 * ‖v‖ ^ 2) :
        ∃ M : PositiveBilinearMeasure X (Euclidean (n + 2)),
    …

    Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.LocalPoissonHessianActionInput, OAI.RegularPointCoordinates.Euclidean, OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.hausdorff, OAI.RegularPointCoordinates.IsConstantLaplacianOn, OAI.RegularPointCoordinates.localGamma, OAI.RegularPointCoordinates.PositiveBilinearMeasure