OAI/GroupTheory/PolycyclicRecognition/Algebra/GoodSheetWordImage.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

Image bounds for whole words with good intermediate sheets

  1. theorem OAI.PolycyclicRecognition.supportWordPath_good_image_bound line 23

    Source documentation

    Both support legs have good profiles. Every point of each switch is near its outgoing endpoint, so no condition on intermediate root sheets is introduced when concatenating the word.

    theorem supportWordPath_good_image_bound
        (d f : I → ℝ → G) (hd : ∀ i, Continuous (d i)) (hf : ∀ i, Continuous (f i))
        (hd₀ : ∀ i, d i 0 = 1) (hf₀ : ∀ i, f i 0 = 1) (d₀ : G) (r : ℝ)
        (J : G → W) {K : ℝ≥0} (hJ : LipschitzWith K J)
        (A : Set G) (P : I → ℝ → Prop) (center : W) (E : Set W)
        {L κ B switchError : ℝ} (hL : 0 ≤ L) (hκ : 0 ≤ κ) (hswitchError : 0 ≤ switchError)
        (hbase : ∀ n ∈ A, ∃ w ∈ E, ‖J (n * d₀) - center - r • w‖ ≤ B)
        (hleg : ∀ n ∈ A, ∀ i, ∀ t : unitInterval,
          ∃ w ∈ E, ‖J ((n * d₀) * d i (r * t)) - center - r • w‖ ≤ B)
        (hmetric : ∀ n ∈ A, ∀ i b, P i b → n * f i b ∈ A →
          PathMetricBound (supportVisitPath (d i) (hd i) (hd₀ i)
            (f i) (hf i) (hf₀ i) n d₀ r b) L κ)
    …

    Mentions: OAI.PolycyclicRecognition.PathMetricBound, OAI.PolycyclicRecognition.supportVisitPath