OAI/GroupTheory/PolycyclicRecognition/Geometry/SequenceWeightedSectionError.lean

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Small-error absorption along the actual profile scale sequence

  1. theorem OAI.PolycyclicRecognition.weighted_section_error_absorbed_sequence line 31

    Source documentation

    The absorption theorem requires only sequential subexponential data, with no regularity between the scale values.

    theorem weighted_section_error_absorbed_sequence
        (scale : ℕ → ℝ) (hs : StrictMono scale) (hscale : Tendsto scale atTop atTop)
        (cost : I → ℝ) {lo M : ℝ} (hlo : 0 < lo)
        (hcost : ∀ i, lo ≤ cost i) (hM : 0 < M)
        (C : ℝ) (hC : 0 ≤ C)
        (hbr : ∀ r : ℝ, 0 ≤ r → ∀ i j k,
          |(exponentialRescaleBasis B (Sum.elim cost (fun _ => 0)) r).repr
            ⁅exponentialRescaleBasis B (Sum.elim cost (fun _ => 0)) r i,
              exponentialRescaleBasis B (Sum.elim cost (fun _ => 0)) r j⁆ k| ≤ C)
        (R : ℕ → ℝ) (hR : ∀ n, 0 ≤ R n)
        (hRsub : HasSubexponentialUpperBoundSeq scale R) :
        ∃ S : ℕ → ℝ, HasSubexponentialUpperBoundSeq scale S ∧
    …

    Mentions: OAI.PolycyclicRecognition.exponentialRescaleBasis, OAI.PolycyclicRecognition.HasSubexponentialUpperBoundSeq