OAI/GroupTheory/PolycyclicRecognition/Analysis/SupportVisitRescale.lean

GitHub source file

2 declarations, 0 contain sorry, 0 declared as axioms

Exact amplitude reparametrization of a support visit

  1. theorem OAI.PolycyclicRecognition.supportVisitPath_comp_mul line 15

    Source documentation

    Rescaling the root subgroup parameter preserves every point of the outward-switch-return path, including its parametrization.

    theorem supportVisitPath_comp_mul
        (d : ℝ → G) (hd : Continuous d) (hd₀ : d 0 = 1)
        (f : ℝ → G) (hf : Continuous f) (hf₀ : f 0 = 1)
        (n d₀ : G) (r b a : ℝ) (t : unitInterval) :
        supportVisitPath d hd hd₀ (fun u => f (u * a))
          (hf.comp (continuous_id.mul_const a)) (by simpa using hf₀) n d₀ r b t =
        supportVisitPath d hd hd₀ f hf hf₀ n d₀ r (b * a) t := by
    …

    Mentions: OAI.PolycyclicRecognition.supportVisitPath

  2. theorem OAI.PolycyclicRecognition.supportVisitPath_comp_mul_metric line 27

    Source documentation

    The exact reparametrization transports the coarse metric estimate.

    theorem supportVisitPath_comp_mul_metric
        (d : ℝ → G) (hd : Continuous d) (hd₀ : d 0 = 1)
        (f : ℝ → G) (hf : Continuous f) (hf₀ : f 0 = 1)
        (n d₀ : G) (r b a L κ : ℝ)
        (h : PathMetricBound (supportVisitPath d hd hd₀ f hf hf₀ n d₀ r (b * a)) L κ) :
        PathMetricBound (supportVisitPath d hd hd₀ (fun u => f (u * a))
          (hf.comp (continuous_id.mul_const a)) (by simpa using hf₀) n d₀ r b) L κ := by
    …

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