OAI/Geometry/RCD/Sobolev/RadialInteriorEnergy.lean

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The weak radial equation controls the interior fit energy

  1. theorem OAI.RegularPointCoordinates.radial_interior_energy_from_fit line 18

    Source documentation

    Weak radial cancellation and its actual Dirichlet correction upgrade an L2 fit to an interior gradient fit. The source is the same shifted Hessian budget already used for the radial value estimates.

    theorem radial_interior_energy_from_fit {K : ℝ} {n : ℕ}
        (hX : NoncollapsedRCD K n X) (hgradient : LocalHarmonicL2GradientInput hX)
        (hn : 2 ≤ n) {κ : ℝ} (hκ : 0 ≤ κ) :
        ∃ C : ℝ, 1 ≤ C ∧ ∀ (p : X) (R : ℝ), 0 < R → -κ ≤ K * R ^ 2 →
          ∀ (f a : SobolevSpace (hausdorff n X) hX.quadratic)
            (G : LocalHessianPairing (hausdorff n X) hX.quadratic (ball p R) f a),
          ∀ {c P D : ℝ},
          IsConstantLaplacianOn (hausdorff n X) hX.quadratic (ball p R) f c →
          IsSobolevHarmonicOn (hausdorff n X) hX.quadratic (ball p R) a →
          0 ≤ P → 0 ≤ D →
          (∀ φ : SobolevSpace.dirichlet (hausdorff n X) hX.quadratic (ball p R),
            ‖SobolevSpace.toLp (hausdorff n X) hX.quadratic φ.val‖ ^ 2 ≤
    …

    Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.LocalHarmonicL2GradientInput, OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.hausdorff, OAI.RegularPointCoordinates.LocalHessianPairing, OAI.RegularPointCoordinates.IsConstantLaplacianOn, OAI.RegularPointCoordinates.IsSobolevHarmonicOn, OAI.RegularPointCoordinates.SobolevSpace.dirichlet, OAI.RegularPointCoordinates.SobolevSpace.toLp