OAI/Analysis/Daugavet/UpperBounds.lean
6 declarations, 0 contain sorry, 0 declared as axioms
- lemma
OAI.ExactModuli.half_envelopeline 14 - lemma
OAI.ExactModuli.cofinite_direction_upperline 21 - theorem
OAI.ExactModuli.averaged_upper_boundline 41Source documentation
Matching averaged upper curve, from one family of cofinite directions.
theorem averaged_upper_bound (hsp : UnitSliceProperty X) {x : X} (hx : ‖x‖ = 1) {t : ℝ} (ht : 0 ≤ t) : H (normSeminorm ℝ X) x t ≤ max (t / 2) (t - 1) := by …Mentions: OAI.ExactModuli.UnitSliceProperty, OAI.ExactModuli.H
- theorem
OAI.ExactModuli.oneSided_upper_boundline 63Source documentation
Matching one-sided upper curve, including the radius-two corner.
theorem oneSided_upper_bound (hsp : UnitSliceProperty X) {x : X} (hx : ‖x‖ = 1) {t : ℝ} (ht : 0 ≤ t) : D (normSeminorm ℝ X) x t ≤ max 0 (t - 2) := by …Mentions: OAI.ExactModuli.UnitSliceProperty, OAI.ExactModuli.D
- theorem
OAI.ExactModuli.exact_pointwiseline 82 - theorem
OAI.ExactModuli.exact_center_infimaline 93Source documentation
The infimum over centers is a separate conclusion, not an identification of definitions.
theorem exact_center_infima (E : Submodule ℝ (Lp ℝ 1 μ)) (hdim : ¬ FiniteDimensional ℝ E) (hpre : MeasurePrecompactBall μ E) (hd : Daugavet E) {t : ℝ} (ht : 0 < t) : averagedModulus (normSeminorm ℝ E) t = max (t / 2) (t - 1) ∧ oneSidedModulus (normSeminorm ℝ E) t = max 0 (t - 2) := by …Mentions: OAI.ExactModuli.MeasurePrecompactBall, OAI.ExactModuli.Daugavet, OAI.ExactModuli.averagedModulus, OAI.ExactModuli.oneSidedModulus