OAI/NumberTheory/JointDickman/Analysis/TypicalMellinLowFrequency.lean
4 declarations, 0 contain sorry, 0 declared as axioms
The effect of the typical-set cutoff on bounded-frequency energy
- lemma
OAI.JointDickman.angularMellinPolynomial_subline 11 - lemma
OAI.JointDickman.norm_angularMellinPolynomial_leline 18 - lemma
OAI.JointDickman.angularMellin_restriction_differenceline 26 - theorem
OAI.JointDickman.angularMellin_restriction_low_energyline 56Source documentation
Cutting out a set of small ordinary density preserves the bounded frequency estimate, with an explicit squared counting error.
theorem angularMellin_restriction_low_energy (E : ℕ → Prop) (f b : ℕ → ℂ) (hf : ∀ n, ‖f n‖ ≤ 1) {N K : ℕ} (hN : 0 < N) {T : ℝ} (hT : 0 ≤ T) : (∫ t in -T..T, ‖angularMellinPolynomial (Ioc N K) (fun n => (if E n then f n else 0)-b n) t‖^2) ≤ 2*(∫ t in -T..T, ‖angularMellinPolynomial (Ioc N K) (fun n => f n-b n) t‖^2) + 4*T*((((Ioc N K).filter fun n => ¬E n).card : ℝ)/N)^2 := by …Mentions: OAI.JointDickman.angularMellinPolynomial