OAI/GroupTheory/PolycyclicRecognition/Analysis/SubexponentialVolumeComparison.lean
3 declarations, 0 contain sorry, 0 declared as axioms
Comparing exponential rates after subexponential losses
- theorem
OAI.PolycyclicRecognition.exponent_le_of_subexponential_exp_boundline 15Source documentation
The measurable-image loss disappears in the eventual packing comparison.
theorem exponent_le_of_subexponential_exp_bound {p q : ℝ} {f g : ℝ → ℝ} (hf : HasSubexponentialLowerBound f) (hg : HasSubexponentialUpperBound g) (hbound : ∀ᶠ r in atTop, f r * Real.exp (r * p) ≤ g r * Real.exp (r * q)) : p ≤ q := by …Mentions: OAI.PolycyclicRecognition.HasSubexponentialLowerBound, OAI.PolycyclicRecognition.HasSubexponentialUpperBound
- theorem
OAI.PolycyclicRecognition.exponent_le_of_subexponential_polynomial_boundline 38Source documentation
A fixed polynomial packing prefactor also absorbs the subexponential loss of the successful endpoint set.
theorem exponent_le_of_subexponential_polynomial_bound {p q D : ℝ} {f : ℝ → ℝ} (hf : HasSubexponentialLowerBound f) (hD : 0 < D) (k : ℕ) (hbound : ∀ᶠ r in atTop, f r * Real.exp (r * p) ≤ D * (1 + r) ^ k * Real.exp (r * q)) : p ≤ q := by …Mentions: OAI.PolycyclicRecognition.HasSubexponentialLowerBound
- theorem
OAI.PolycyclicRecognition.exponent_le_of_subexponential_separated_countsline 56Source documentation
The separated endpoint count may lose subexponential mass, as in the successful-parameter image estimate.
theorem exponent_le_of_subexponential_separated_counts {p q D : ℝ} {f : ℝ → ℝ} (hf : HasSubexponentialLowerBound f) (hD : 0 < D) {Q : ℝ≥0∞} (hQ : Q < ⊤) (k : ℕ) (hcount : ∀ᶠ r in atTop, ∃ N : ℕ, ENNReal.ofReal (f r) * ENNReal.ofReal (Real.exp (r * p)) ≤ (N : ℝ≥0∞) * Q ∧ (N : ℝ) ≤ D * (1 + r) ^ k * Real.exp (r * q)) : p ≤ q := by …Mentions: OAI.PolycyclicRecognition.HasSubexponentialLowerBound