OAI/Geometry/RCD/Harmonic/AverageHarmonicSource.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Averaging the full harmonic cutoff source

  1. def OAI.RegularPointCoordinates.boundedKernelAverage line 22

    Source documentation

    The averaged kernel is globally bounded by reciprocal testing volume. This makes it a legitimate test for a finite signed source, even at singular source poles.

    def boundedKernelAverage {t : ℝ} (ht : 0 < t) (A : Set X)
        (hA : MeasurableSet A) (hbounded : Bornology.IsBounded A) : X →ᵇ ℝ :=
    …
  2. theorem OAI.RegularPointCoordinates.LocalHarmonicEnergy.average_cutoffSource line 35

    Source documentation

    Exact mass, curvature and cutoff-density decomposition of the actual averaged signed source. No absolute-continuity replacement of M is made.

    theorem LocalHarmonicEnergy.average_cutoffSource
        (G : LocalHarmonicEnergy μ hQ U M κ p r L v)
        (χ : X →ᵇ ℝ) (hcompact : HasCompactSupport (χ : X → ℝ))
        (c : SobolevSpace μ hQ) (q : Lp ℝ 2 μ) {t : ℝ} (ht : 0 < t)
        (A : Set X) (hA : MeasurableSet A) (hbounded : Bornology.IsBounded A) :
        (∫ᵛ z, kernelAverage μ ker t A z ∂<•(G.cutoffSource μ hQ χ c q)) =
          2 * ⟪v, cutoffAverageHeatMass μ hQ hk χ.continuous hcompact M ht A hA hbounded v⟫_ℝ -
          2 * κ * (∫ z, χ z * kernelAverage μ ker t A z * localGamma μ hQ (U v) (U v) z ∂μ) +
          ∫ z, kernelAverage μ ker t A z * cutoffSourceDensity μ hQ G.energy c q z ∂μ := by
    …

    Mentions: OAI.RegularPointCoordinates.LocalHarmonicEnergy, OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.kernelAverage, OAI.RegularPointCoordinates.cutoffAverageHeatMass, OAI.RegularPointCoordinates.localGamma, OAI.RegularPointCoordinates.cutoffSourceDensity