OAI/Geometry/SurfaceImmersion/Correction/UniformRadiusSmoothedMetricIncrement.lean

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One fixed geometric neighborhood supports smoothed metric correction at every smoothing and cancellation order.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.MetricGoodPhaseData.uniform_radius_smoothed_increment line 34

    Source documentation

    The two geometric radii are fixed before all smoothing orders, correction orders, and true-input bounds.

    theorem uniform_radius_smoothed_increment (d : MetricGoodPhaseData g F)
        (hF : ContMDiff planeModel spaceModel ∞ F) :
        ∃ a ρ : ℝ, 0 < a ∧ 0 < ρ ∧
        ∀ (r q : ℕ) (B₀ : ℝ), 0 ≤ B₀ →
        ∃ (η : ℝ) (B T : ℕ → ℝ), 0 < η ∧ η ≤ 1 ∧
          (∀ m, 0 ≤ B m) ∧ (∀ m, 0 ≤ T m) ∧
        ∀ (G : M → Space) (H : ∀ p : M, CovariantTwoTensor p),
          ContMDiff planeModel spaceModel ∞ G →
          ContMDiff planeModel (planeModel.prod 𝓘(ℝ, TensorFiber)) ∞
            (fun p => TotalSpace.mk' TensorFiber p (H p)) →
          (∀ p v w, H p v w = H p w v) →
        ∀ t s : ℝ, 0 < t → t ≤ 1 → 0 < s → s ≤ 1 →
    …

    Mentions: OAI.ClosedSurfaceR4.FiniteOrderSmoothing.MetricGoodPhaseData, OAI.ClosedSurfaceR4.planeModel, OAI.ClosedSurfaceR4.Space, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.CovariantTwoTensor, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.TensorFiber

  2. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.MetricGoodPhaseData.uniform_radius_smoothed_increment_of_input line 113

    Source documentation

    The metric norm bound is fixed once, and the smoothing-tail constant is chosen from the smoothing order before the correction order or input bound.

    theorem uniform_radius_smoothed_increment_of_input (d : MetricGoodPhaseData g F)
        (hF : ContMDiff planeModel spaceModel ∞ F) :
        ∃ a ρ K : ℝ, 0 < a ∧ 0 < ρ ∧ 0 ≤ K ∧
        ∀ r : ℕ, ∃ D : ℝ, 0 ≤ D ∧
        ∀ (q : ℕ) (B₀ : ℝ), 0 ≤ B₀ →
        ∃ (η : ℝ) (B T : ℕ → ℝ), 0 < η ∧ η ≤ 1 ∧
          (∀ m, 0 ≤ B m) ∧ (∀ m, 0 ≤ T m) ∧
        ∀ (G : M → Space) (H : ∀ p : M, CovariantTwoTensor p),
          ContMDiff planeModel spaceModel ∞ G →
          ContMDiff planeModel (planeModel.prod 𝓘(ℝ, TensorFiber)) ∞
            (fun p => TotalSpace.mk' TensorFiber p (H p)) →
          (∀ p v w, H p v w = H p w v) →
    …

    Mentions: OAI.ClosedSurfaceR4.FiniteOrderSmoothing.MetricGoodPhaseData, OAI.ClosedSurfaceR4.planeModel, OAI.ClosedSurfaceR4.Space, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.CovariantTwoTensor, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.TensorFiber