OAI/Geometry/SurfaceImmersion/Correction/SmoothingResidualOperator.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Bounds in unchanged derivative norms for repeated residual operators.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.residual_bounded line 17

    Source documentation

    The residual operator is bounded in the original norm, independently of its smoothing scale.

    theorem residual_bounded {s C : ℝ} (hs : 0 < s) (n : ℕ)
        {f : Base → E} (hb : ∀ x, ‖f x‖ ≤ C) (x : Base) :
        ‖residual s n f x‖ ≤ (1 + ∫ y, ‖kernel 0 y‖) ^ n * C := by
    …

    Mentions: OAI.ClosedSurfaceR4.FiniteOrderSmoothing.residual, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.kernel

  2. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.iterated_residual_bounded line 32

    Source documentation

    Repeated residuals are bounded in every original derivative norm.

    theorem iterated_residual_bounded {s C : ℝ} (hs : 0 < s) (n m : ℕ)
        {f : Base → E} (hf : ContDiff ℝ ∞ f) (hfc : HasCompactSupport f)
        (hb : ∀ x, ‖iteratedFDeriv ℝ m f x‖ ≤ C) (x : Base) :
        ‖iteratedFDeriv ℝ m (residual s n f) x‖ ≤
          (1 + ∫ y, ‖kernel 0 y‖) ^ n * C := by
    …

    Mentions: OAI.ClosedSurfaceR4.FiniteOrderSmoothing.residual, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.kernel