OAI/Analysis/LipschitzHilbert/Trees/FiniteGoodPath.lean

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Good-path domination from an exact finite top expansion and the proved individual terminal-probability cap.

  1. theorem OAI.LipschitzHilbert.finite_good_path_domination line 14

    Source documentation

    The bad terminal tops carry at most half the original amount.

    theorem finite_good_path_domination (S bad : Finset τ) (hbadS : bad ⊆ S)
        (w e Q : τ → ℝ) (V C : ℝ) (hV : 0 < V)
        (htotal : ∑ t ∈ S, e t*Q t = V)
        (hprob : ∀ t ∈ bad, e t*Q t/V ≤ C*w t)
        (he : ∀ t ∈ S, e t ≤ C*w t) (hQ : ∀ t ∈ S, 0 ≤ Q t)
        (hbad : C*(∑ t ∈ bad, w t) ≤ 1/2) :
        V ≤ 2*C*∑ t ∈ S\bad, w t*Q t := by
    …