OAI/Geometry/RCD/Sobolev/HarmonicBochnerFromHessian.lean

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Harmonic Bochner calculus from the Poisson Hessian input

The n-dimensional harmonic span embeds isometrically into the existing (n+2)-dimensional Poisson span. Restricting the full positive measure to that subspace proves the harmonic Bochner input, including its original extension bound, without a separate assumption.

  1. def OAI.RegularPointCoordinates.harmonicCoordinateInclusion line 20
  2. def OAI.RegularPointCoordinates.harmonicMeasureRestriction line 32
  3. theorem OAI.RegularPointCoordinates.LocalPoissonHessianInput.harmonicBochnerInput line 45

    Source documentation

    The separate harmonic Bochner premise is a consequence of the already required Poisson Hessian specialization of Gigli--Han.

    theorem LocalPoissonHessianInput.harmonicBochnerInput {K : ℝ} {n : ℕ}
        {hX : NoncollapsedRCD K n X} (h : LocalPoissonHessianInput hX) :
        LocalHarmonicBochnerInput hX := by
    …

    Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.LocalPoissonHessianInput, OAI.RegularPointCoordinates.LocalHarmonicBochnerInput