OAI/Analysis/LipschitzHilbert/Trees/HierarchyNormalization.lean

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The normalized child identity

Exact algebra for §8, equation (src-25): the ratio of the parent amount (with the residual omitted) to its child denominator equals the weighted prediction ratio. No estimates or hierarchy hypotheses enter this identity.

  1. theorem OAI.LipschitzHilbert.child_normalization_coefficient line 21
  2. theorem OAI.LipschitzHilbert.normalized_child_sum line 34
  3. theorem OAI.LipschitzHilbert.normalized_vector_power line 50
  4. theorem OAI.LipschitzHilbert.normalized_child_ratio line 57

    Source documentation

    Equation (src-25), with every scalar power and normalization explicit.

    theorem normalized_child_ratio (n : ℝ) (m : ι → ℝ) (A : ι → E) (lambda : ι → ℂ)
        (μ α p : ℝ) (hn : 0 < n) (hm : ∀ i, 0 < m i) (hrelation : p * μ = α - 1) :
        (n + n ^ (α - p) * ‖∑ i, lambda i • A i‖ ^ p) /
          (n + ∑ i, m i ^ (α - p) * ‖A i‖ ^ p) =
        (1 + ‖∑ i, ((((m i / n) ^ (1 - μ) : ℝ) : ℂ) * lambda i) •
          (((m i ^ (μ - 1) : ℝ) : ℂ) • A i)‖ ^ p) /
          (1 + ∑ i, (m i / n) * ‖((m i ^ (μ - 1) : ℝ) : ℂ) • A i‖ ^ p) := by
    …