OAI/Geometry/RCD/Sobolev/ActualEulerLimit.lean
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Passing the actual Sobolev Euler equation to the Euclidean limit
- theorem
OAI.RegularPointCoordinates.PoissonHarmonicLimit.euler_equationline 20Source documentation
Joint compactness, the actual projected Sobolev equation, and a vanishing normalized error imply the limiting Euler equation. There is no assumption of an Euler equation for the limiting model.
theorem PoissonHarmonicLimit.euler_equation {K : ℝ} {n : ℕ} {hX : NoncollapsedRCD K n X} {S : ℝ} {p : ℕ → X} {r : ℕ → ℝ} {u : ℕ → Fin n → SobolevSpace (hausdorff n X) hX.quadratic} {V : ℕ → X → Euclidean n} {w f : ℕ → SobolevSpace (hausdorff n X) hX.quadratic} {model : EuclideanHarmonicModel n S} (hlimit : PoissonHarmonicLimit hX S p r u V w f model) (hS : 0 < S) (hV : ∀ i, Measurable (V i)) (hrep : ∀ i j, SobolevSpace.toLp (hausdorff n X) hX.quadratic (u i j) =ᵐ[ (hausdorff n X).restrict (ball (p i) (S * r i))] fun x => V i x j) (B : ℕ → ℝ) (hf : ∀ i, ∀ᵐ x ∂(hausdorff n X).restrict (ball (p i) (S * r i)), localGamma (hausdorff n X) hX.quadratic (f i) (f i) x ≤ B i) (e : ℕ → SobolevSpace (hausdorff n X) hX.quadratic) …Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.hausdorff, OAI.RegularPointCoordinates.Euclidean, OAI.RegularPointCoordinates.EuclideanHarmonicModel, OAI.RegularPointCoordinates.PoissonHarmonicLimit, OAI.RegularPointCoordinates.SobolevSpace.toLp, OAI.RegularPointCoordinates.localGamma