OAI/Geometry/RCD/Harmonic/GeometricProjectionOuter.lean

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Uniform outer control for the actual projected Euler equation

  1. theorem OAI.RegularPointCoordinates.LocalHarmonicL2GradientInput.projected_residual_outer line 19

    Source documentation

    The local harmonic estimate controls the affine forcing from the inner residual. The radial transport estimate then controls its outer norm, with both constants preceding all centers and radii.

    theorem LocalHarmonicL2GradientInput.projected_residual_outer
        {K : ℝ} {n : ℕ} {hX : NoncollapsedRCD K n X}
        [IsFiniteMeasureOnCompacts (hausdorff n X)]
        (hinput : LocalHarmonicL2GradientInput hX) (hn : 2 ≤ n)
        {κ H V W B J E D : ℝ} (hκ : 0 ≤ κ) (hH : 0 ≤ H) (hV : 0 ≤ V)
        (hW : 0 ≤ W) (hB : 0 ≤ B) (hJ : 0 ≤ J) (hE : 0 ≤ E) (Cw : ℝ≥0) :
        ∃ G T : ℝ, 0 ≤ G ∧ 0 ≤ T ∧
          ∀ (p : X) (R a : ℝ), 0 < R → 0 ≤ a → a ≤ (n : ℝ) + 1 → -κ ≤ K * R ^ 2 →
          ∀ (f w η e : SobolevSpace (hausdorff n X) hX.quadratic)
            (u : Fin n → SobolevSpace (hausdorff n X) hX.quadratic)
            (N : Euclidean n ≃L[ℝ] Euclidean n) (ell : Euclidean n) (k σ : ℝ), 0 ≤ σ →
          IsConstantLaplacianOn (hausdorff n X) hX.quadratic (ball p (4 * R)) f a →
    …

    Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.hausdorff, OAI.RegularPointCoordinates.LocalHarmonicL2GradientInput, OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.Euclidean, OAI.RegularPointCoordinates.IsConstantLaplacianOn