OAI/Geometry/RCD/Coordinates/RegularActualPatches.lean

GitHub source file

9 declarations, 0 contain sorry, 0 declared as axioms

Fixed actual patches and energy centers at every scale

  1. def OAI.RegularPointCoordinates.RegularBilinearData.patchRadius line 24
  2. def OAI.RegularPointCoordinates.RegularBilinearData.patchRegion line 27
  3. def OAI.RegularPointCoordinates.RegularBilinearData.patchNet line 29
  4. def OAI.RegularPointCoordinates.RegularBilinearData.patchCutoff line 31
  5. def OAI.RegularPointCoordinates.RegularBilinearData.patchDomain line 35
  6. theorem OAI.RegularPointCoordinates.regular_net_pinching_diameter_le line 41

    Source documentation

    The net is much finer than the directional pinching radius.

    theorem regular_net_pinching_diameter_le {R : ℝ} (hR : 0 < R) (shift i : ℕ) :
        2 * 144 * regularNetRadius R shift i ≤ distanceSourceRadius R (shift + i) / 512 := by
    …

    Mentions: OAI.RegularPointCoordinates.regularNetRadius, OAI.RegularPointCoordinates.distanceSourceRadius

  7. theorem OAI.RegularPointCoordinates.regular_actual_patch_cover line 53
  8. theorem OAI.RegularPointCoordinates.exists_regular_actual_patch_centers line 69

    Source documentation

    Each operator center is fixed once for the entire active patch. The same center satisfies both the pinching estimate and the mass comparison distance bound; it is independent of the subsequently tested vector.

    theorem exists_regular_actual_patch_centers {K : ℝ} {n : ℕ}
        (hX : NoncollapsedRCD K n X) [(hausdorff n X).Regular]
        {base : X} {a κ B J C A Cχ enlargement zeta eta Cpin budget : ℝ}
        {ker : ℝ → X → X → ℝ}
        {hk : IsContinuousHeatKernel (hausdorff n X) hX.quadratic ker}
        (e : RegularProjectionEnvironment hX base hk a κ B J C A Cχ enlargement zeta eta)
        (hzeta : zeta ≤ 1 / 64) (psi : EuclideanGevreyCutoff n)
        (f : RegularPinchingField e.heat Cpin budget) (hCpin : 0 ≤ Cpin) :
        ∃ center : ∀ i, {y : X // y ∈ e.heat.patchNet i} →
            {q : X // q ∈ ball base (e.heat.radius / 32)},
          ∀ i y,
            (center i y).val ∈ e.heat.patchDomain psi.value i y.val ∧
    …

    Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.hausdorff, OAI.RegularPointCoordinates.IsContinuousHeatKernel, OAI.RegularPointCoordinates.RegularProjectionEnvironment, OAI.RegularPointCoordinates.EuclideanGevreyCutoff, OAI.RegularPointCoordinates.RegularPinchingField

  9. theorem OAI.RegularPointCoordinates.RegularPinchingField.shifted_energy_sum_le line 119

    Source documentation

    Starting the iteration at the heat shift preserves the total budget.

    theorem shifted_energy_sum_le (f : RegularPinchingField d C budget)
        (q : {q : X // q ∈ ball base (d.radius / 32)}) (shift k : ℕ) :
        (∑ i ∈ Finset.range k, f.energy q (shift + i)) ≤ budget := by
    …

    Mentions: OAI.RegularPointCoordinates.RegularPinchingField