OAI/MeasureTheory/Falconer/Estimates/PolicyRootDecay.lean

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Absorbing the finite branch factor into the root potential gain

  1. theorem OAI.Falconer.eventual_policy_root_decay line 10

    Source documentation

    The fixed branching factor costs an arbitrarily small power.

    theorem eventual_policy_root_decay (D : ℕ) {gain : ℝ}
        (hgain : 0 < gain) (hgain1 : gain ≤ 1) :
        ∃ N₀ : ℕ, ∀ N ≥ N₀, ∀ E x : ℝ, E ≤ -2*gain →
          x ≤ 4^(D+1)*(((2:ℝ)^N)^E+((2:ℝ)^N)^(-10:ℝ)) →
          x ≤ ((2:ℝ)^N)^(-gain) := by
    …