OAI/NumberTheory/JointDickman/Amplification/DyadicTailSum.lean
6 declarations, 0 contain sorry, 0 declared as axioms
Summing the lower-tail Chernoff bounds over dyadic endpoints
- theorem
OAI.JointDickman.geometric_sum_under_capline 12 - theorem
OAI.JointDickman.dyadic_power_sum_boundline 36 - def
OAI.JointDickman.tailSavingline 54 - theorem
OAI.JointDickman.tailSaving_posline 56 - theorem
OAI.JointDickman.tail_chernoff_factor_boundline 58 - theorem
OAI.JointDickman.dyadic_tail_chernoff_sumline 79Source documentation
The dyadic union bound is uniform in the number of endpoints and in C.
theorem dyadic_tail_chernoff_sum (S : Finset ℕ) {B Y K C : ℝ} (hB : 0 < B) (hY : 0 < Y) (M : ℕ → ℝ) (hM : ∀ i ∈ S, Real.log (B / ((2 : ℝ) ^ i * Y)) - K ≤ M i) (hcap : ∀ i ∈ S, (2 : ℝ) ^ i * Y ≤ B) : (∑ i ∈ S, Real.exp ((1 / 10 : ℝ) * ((2 / 5 : ℝ) * Real.log (B / ((2 : ℝ) ^ i * Y)) - C) + ((Real.exp (-(1 / 10 : ℝ)) - 1) / 2) * M i)) ≤ (Real.exp (K * ((1 - Real.exp (-(1 / 10 : ℝ))) / 2)) * ((2 : ℝ) ^ tailSaving / ((2 : ℝ) ^ tailSaving - 1))) * Real.exp (-(1 / 10 : ℝ) * C) := by …Mentions: OAI.JointDickman.tailSaving