OAI/Geometry/SurfaceImmersion/Correction/InitialLocalCorrection.lean

GitHub source file

1 declarations, 0 contain sorry, 0 declared as axioms

Local finite-accuracy criterion for an actual exact correction.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.MetricGoodPhaseData.local_exact_correction line 29

    Source documentation

    A finite order metric-accuracy criterion, with all constants chosen before the smoothing scale. The resulting isometric map stays in the prescribed geometric neighborhood of the reference immersion.

    theorem local_exact_correction (d : MetricGoodPhaseData g F)
        (hF : ContMDiff planeModel spaceModel ∞ F) :
        ∃ c : PreparedCorrection d.toCorrectionGeometry, ∃ e ε : ℝ, 0 < e ∧ 0 < ε ∧ ε ≤ 1/32 ∧
        ∀ t : ℝ, 0 < t → t < ε →
          d.A.TensorWeightedBound t 440 ((t^(10 : ℝ))^2*e) (inducedTensor F-g.inner) →
          ∃ G : M → Space, IsSmoothIsometricImmersion M g G ∧
            d.A.WeightedBound 1 2 (c.ρ/4) (G-F) := by
    …

    Mentions: OAI.ClosedSurfaceR4.FiniteOrderSmoothing.MetricGoodPhaseData, OAI.ClosedSurfaceR4.planeModel, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.PreparedCorrection, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.inducedTensor, OAI.ClosedSurfaceR4.Space, OAI.ClosedSurfaceR4.IsSmoothIsometricImmersion