OAI/MeasureTheory/Falconer/Estimates/Eligibility.lean
6 declarations, 0 contain sorry, 0 declared as axioms
Eligible cell--cap incidences
Positive incidence supplies one point--angle witness. Zero incidence annihilates the endpoint transform on almost every angle in the cap, simultaneously for every radial frequency. The symbols need only be measurable in the spatial variable.
- def
OAI.Falconer.capIncidenceline 17 - theorem
OAI.Falconer.capIncidence_witnessline 21 - theorem
OAI.Falconer.endpoint_square_integrableline 35 - theorem
OAI.Falconer.endpoint_square_leline 45 - theorem
OAI.Falconer.capIncidence_zero_transformline 58Source documentation
A null cell--cap incidence is removed as an integrated whole. There is no frequency-dependent exceptional set of angles.
theorem capIncidence_zero_transform {d : ℕ} (ρ : Measure (Space d)) [IsFiniteMeasure ρ] (η : Sphere d → ℝ) (hηm : Measurable η) (hη : ∀ w, 0 ≤ η w) (b : Space d → Sphere d → ℂ) (hb : Measurable (Function.uncurry b)) {B C : ℝ} (hB : 0 ≤ B) (hC : 0 ≤ C) (hηB : ∀ w, η w ≤ B) (hbound : ∀ x w, ‖b x w‖ ≤ C) (hzero : capIncidence ρ η b = 0) (M : ℝ) : ∀ᵐ w ∂sphereMeasure d, 0 < η w → ∀ r, endpointTransform ρ M b r w = 0 := by …Mentions: OAI.Falconer.Space, OAI.Falconer.Sphere, OAI.Falconer.capIncidence, OAI.Falconer.sphereMeasure, OAI.Falconer.endpointTransform
- theorem
OAI.Falconer.capIncidence_zero_weightedIntegralline 93