OAI/Geometry/RCD/Harmonic/LocalResidualOuterBound.lean

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Uniform residual transport using only local boundedness

  1. theorem OAI.RegularPointCoordinates.local_uniform_residual_outer_bound line 19

    Source documentation

    Clipping outside the working ball preserves its Euler identity and all three local norms. The transport constant uses only the local bound.

    theorem local_uniform_residual_outer_bound (n : ℕ) {F E : ℝ} (hF : 0 ≤ F)
        (C : ℝ≥0) :
        ∃ T : ℝ, 0 ≤ T ∧ ∀ (R a : ℝ), 0 < R → 0 ≤ a → a ≤ (n : ℝ) + 1 →
          ∀ (z : X) (f w q : SobolevSpace μ hQ) (σ : ℝ), 0 ≤ σ →
          IsConstantLaplacianOn μ hQ (ball z (4 * R)) f a →
          ∀ {B : ℝ} (hf : ∀ᵐ x ∂μ.restrict (ball z (4 * R)), localGamma μ hQ f f x ≤ B),
          (∀ᵐ x ∂μ.restrict (ball z (4 * R)), |SobolevSpace.toLp μ hQ w x| ≤ C) →
          ∀ e : X → ℝ, MemLp e 2 μ →
          localRadialDerivative μ hQ (ball z (4 * R)) f hf w =
            SobolevSpace.restrictLp μ hQ (ball z (4 * R)) (w + q) →
          localGamma μ hQ f (inwardSobolev μ hQ z (3 * R)) =ᵐ[μ.restrict (ball z (3 * R))]
            (fun x => e x - dist z x) →
    …

    Mentions: OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.IsConstantLaplacianOn, OAI.RegularPointCoordinates.localGamma, OAI.RegularPointCoordinates.SobolevSpace.toLp, OAI.RegularPointCoordinates.localRadialDerivative, OAI.RegularPointCoordinates.SobolevSpace.restrictLp, OAI.RegularPointCoordinates.inwardSobolev