OAI/Geometry/RCD/Metric/MovingPointedLimitApproximation.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

Pointed approximations with moving physical centers

  1. def OAI.RegularPointCoordinates.PointedSequenceConverges line 15

    Source documentation

    Pointed metric convergence allowing the physical centers to move.

    def PointedSequenceConverges {X Y : Type*} [MetricSpace X] [MetricSpace Y]
        (p : ℕ → X) (q : Y) (r : ℕ → ℝ) : Prop :=
    …
  2. def OAI.RegularPointCoordinates.MovingRescalingNetFamily.netIndex line 26
  3. def OAI.RegularPointCoordinates.MovingRescalingNetFamily.netMap line 32

    Source documentation

    Send a point in the working ball to the corresponding limiting net point. Outside that ball the map takes the base-point value.

    def netMap (R k i : ℕ) (x : X) : UniformSpace.Completion s.Index := by
    …
  4. theorem OAI.RegularPointCoordinates.MovingRescalingNetFamily.netMap_data line 39
  5. theorem OAI.RegularPointCoordinates.MovingRescalingNetFamily.eventually_net_dist line 57

    Source documentation

    A single tail controls every pair of labels in a finite net and the base-point label simultaneously.

    theorem eventually_net_dist (R k : ℕ) {delta : ℝ} (hdelta : 0 < delta) :
        ∀ᶠ i in atTop, ∀ a b : Option (Fin (s.size R k)),
          |dist (s.netIndex R k a) (s.netIndex R k b) -
            dist (s.sample (phi i) (s.netIndex R k a))
              (s.sample (phi i) (s.netIndex R k b)) / r (phi i)| < delta := by
    …
  6. theorem OAI.RegularPointCoordinates.MovingRescalingNetFamily.pointedSequenceConverges line 72

    Source documentation

    The completed sampled limit is a pointed limit of the original rescalings, using maps constructed directly from the finite nets.

    theorem pointedSequenceConverges :
        PointedSequenceConverges (p ∘ phi) ((none : s.Index) : UniformSpace.Completion s.Index) (r ∘ phi) := by
    …

    Mentions: OAI.RegularPointCoordinates.PointedSequenceConverges