OAI/Geometry/SurfaceImmersion/Correction/SmoothingLocalization.lean

GitHub source file

7 declarations, 0 contain sorry, 0 declared as axioms

Compactly supported coordinate representatives for smoothing.

  1. def OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize line 16
  2. lemma OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize_chart line 19
  3. lemma OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize_zero_off_image line 24
  4. lemma OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize_tsupport line 36
  5. lemma OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize_compact line 45
  6. lemma OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize_tsupport_inter line 51

    Source documentation

    Both scalar localization and input support are retained in coordinates.

    lemma localize_tsupport_inter (p : M) {ψ : M → ℝ}
        (hψ : tsupport ψ ⊆ (chart p).source) (f : M → V) :
        tsupport (localize p ψ f) ⊆ (chart p) '' (tsupport ψ ∩ tsupport f) := by
    …

    Mentions: OAI.ClosedSurfaceR4.FiniteOrderSmoothing.chart, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize

  7. lemma OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize_smooth line 76

    Source documentation

    Extension by zero is smooth because the localization support lies in a compact subset of the chart target.

    lemma localize_smooth (p : M) {ψ : M → ℝ} (hψ : ContMDiff planeModel 𝓘(ℝ) ∞ ψ)
        (hsupp : tsupport ψ ⊆ (chart p).source) {f : M → V}
        (hf : ContMDiff planeModel 𝓘(ℝ, V) ∞ f) : ContDiff ℝ ∞ (localize p ψ f) := by
    …

    Mentions: OAI.ClosedSurfaceR4.planeModel, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.chart, OAI.ClosedSurfaceR4.FiniteOrderSmoothing.localize