OAI/GroupTheory/PolycyclicRecognition/Analysis/ProfilePointwiseBounds.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

Anchor bounds and compact containment for sampled map profiles

  1. theorem OAI.PolycyclicRecognition.rescaledMapProfile_norm_le line 19

    Source documentation

    A bound at the identity extends to a pointwise bound by the actual scaled chart distance.

    theorem rescaledMapProfile_norm_le
        {K : ℝ≥0} {J : G → W} (hJ : LipschitzWith K J)
        (x k : G) (r : ℝ) (φ : Z → G) (hφ : φ 0 = 1) (z : Z) :
        ‖rescaledMapProfile J x k r φ z‖ ≤
          (K : ℝ) * (dist 1 (φ z) / Real.exp r) + ‖rescaledMapProfile J x k r φ 0‖ := by
    …

    Mentions: OAI.PolycyclicRecognition.rescaledMapProfile

  2. theorem OAI.PolycyclicRecognition.rescaledMapProfile_zero_norm_le line 35

    Source documentation

    The profile value at the identity is controlled by the suffix length.

    theorem rescaledMapProfile_zero_norm_le
        {K : ℝ≥0} {J : G → W} (hJ : LipschitzWith K J)
        (x k : G) (r : ℝ) (φ : Z → G) (hφ : φ 0 = 1) :
        ‖rescaledMapProfile J x k r φ 0‖ ≤ (K : ℝ) * (dist 1 k / Real.exp r) := by
    …

    Mentions: OAI.PolycyclicRecognition.rescaledMapProfile

  3. theorem OAI.PolycyclicRecognition.exists_compact_containing_rescaled_profiles line 55

    Source documentation

    Once equicontinuity is proved, only the anchor and pointwise chart radius bounds are needed to contain all sampled profiles in one compact set for locally uniform convergence.

    theorem exists_compact_containing_rescaled_profiles
        {A : Type*} {K : ℝ≥0} (J : ℕ → A → G → W)
        (hJ : ∀ i u, LipschitzWith K (J i u)) (x k : ℕ → A → G)
        (scale : ℕ → ℝ) (φ : ℕ → Z → G) (hφ : ∀ i, Continuous (φ i))
        (hzero : ∀ i, φ i 0 = 1)
        (hequi : Equicontinuous (fun p : ℕ × A =>
          rescaledMapProfile (J p.1 p.2) (x p.1 p.2) (k p.1 p.2) (scale p.1) (φ p.1)))
        (B : ℝ) (hanchor : ∀ i u,
          ‖rescaledMapProfile (J i u) (x i u) (k i u) (scale i) (φ i) 0‖ ≤ B)
        (hradius : ∀ z, ∃ D : ℝ, ∀ i, dist 1 (φ i z) / Real.exp (scale i) ≤ D) :
        ∃ S : Set C(Z, W), IsCompact S ∧ ∀ i u,
          (⟨rescaledMapProfile (J i u) (x i u) (k i u) (scale i) (φ i),
    …

    Mentions: OAI.PolycyclicRecognition.rescaledMapProfile