OAI/Geometry/SurfaceImmersion/Correction/MixedPeriodicMean.lean
9 declarations, 0 contain sorry, 0 declared as axioms
Mean and fluctuation preserve mixed weighted periodic estimates.
- lemma
OAI.ClosedSurfaceR4.SmoothPeriodicCalculus.angleDerivative_subline 17 - lemma
OAI.ClosedSurfaceR4.SmoothPeriodicCalculus.angularIterated_subline 25 - def
OAI.ClosedSurfaceR4.SmoothPeriodicCalculus.meanLiftline 36 - lemma
OAI.ClosedSurfaceR4.SmoothPeriodicCalculus.contDiff_meanLiftline 38 - lemma
OAI.ClosedSurfaceR4.SmoothPeriodicCalculus.angleDerivative_meanLiftline 41 - lemma
OAI.ClosedSurfaceR4.SmoothPeriodicCalculus.angularIterated_meanLift_succline 47 - lemma
OAI.ClosedSurfaceR4.SmoothPeriodicCalculus.partialIterated_subline 58 - theorem
OAI.ClosedSurfaceR4.WeightedEstimates.mixed_weighted_meanline 76Source documentation
Averaging does not increase the mixed weighted bound.
theorem mixed_weighted_mean {F : P × ℝ → E} (hF : ContDiff ℝ ∞ F) {U : Set P} (hU : IsOpen U) {s C : ℝ} (hs : 0 < s) (hC : 0 ≤ C) (m : ℕ) (hb : ∀ j k, j + k ≤ m → ∀ p ∈ U, ∀ t ∈ Set.Icc (0 : ℝ) 1, s ^ j * ‖partialIterated j (angularIterated k F) (p, t)‖ ≤ C) : ∀ j k, j + k ≤ m → ∀ p ∈ U, ∀ t ∈ Set.Icc (0 : ℝ) 1, s ^ j * ‖partialIterated j (angularIterated k (meanLift F)) (p, t)‖ ≤ C := by … - theorem
OAI.ClosedSurfaceR4.WeightedEstimates.mixed_weighted_fluctuationline 97Source documentation
Subtracting the mean costs at most a factor of two and no scale loss.
theorem mixed_weighted_fluctuation {F : P × ℝ → E} (hF : ContDiff ℝ ∞ F) {U : Set P} (hU : IsOpen U) {s C : ℝ} (hs : 0 < s) (hC : 0 ≤ C) (m : ℕ) (hb : ∀ j k, j + k ≤ m → ∀ p ∈ U, ∀ t ∈ Set.Icc (0 : ℝ) 1, s ^ j * ‖partialIterated j (angularIterated k F) (p, t)‖ ≤ C) : ∀ j k, j + k ≤ m → ∀ p ∈ U, ∀ t ∈ Set.Icc (0 : ℝ) 1, s ^ j * ‖partialIterated j (angularIterated k (F - meanLift F)) (p, t)‖ ≤ 2 * C := by …