OAI/MeasureTheory/SelfSimilar/HomogeneousDimension.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

  1. theorem OAI.EntropyRateDimension.Extensions.homogeneous_exponent_lower_direct line 12

    Source documentation

    Constant ratios need only one type in the entropy-gap contradiction.

    theorem homogeneous_exponent_lower_direct {ι : Type uι} [Fintype ι] [Nonempty ι]
        (S : System ι) {lam : ℝ} (hr : ∀ i, S.ratio i = lam)
        (μ : Measure ℝ) [IsProbabilityMeasure μ] (hμ : S.SelfSimilar μ) :
        min 1 (S.entropyRate / S.lyapunov) ≤ Coding.exponent S := by
    …

    Mentions: OAI.EntropyRateDimension.System, OAI.EntropyRateDimension.Coding.exponent

  2. theorem OAI.EntropyRateDimension.Extensions.homogeneous_dimension_direct line 34

    Source documentation

    Same hypotheses and conclusion as homogeneous_dimension; independent proof branch.

    Distinct definitions of this name: ComparatorChallenges/SelfSimilarCorollaries.lean:49 (same statement text; different proof or body). Qualify references as OAI.EntropyRateDimension.Extensions.homogeneous_dimension_direct@path.

    theorem homogeneous_dimension_direct {ι : Type uι} [Fintype ι] [Nonempty ι] (S : System ι)
        {lam : ℝ} (hlam : 0 < lam) (hr : ∀ i, S.ratio i = lam)
        (μ : Measure ℝ) [IsProbabilityMeasure μ] (hμ : S.SelfSimilar μ)
        (h : NoExactOverlaps S) :
        lowerHausdorffDimension μ =
          ENNReal.ofReal (min 1 (symbolEntropy S / Real.log (1/lam))) := by
    …

    Mentions: OAI.EntropyRateDimension.System, OAI.EntropyRateDimension.Extensions.NoExactOverlaps, OAI.EntropyRateDimension.Extensions.symbolEntropy