OAI/Geometry/RCD/Coordinates/LocalConstantRepresentative.lean
1 declarations, 0 contain sorry, 0 declared as axioms
Bounded Sobolev representatives of constants on a fixed ball
- theorem
OAI.RegularPointCoordinates.NoncollapsedRCD.local_constant_representativeline 18Source documentation
A compact regular plateau represents the local constant without requiring a globally square-integrable constant function.
theorem NoncollapsedRCD.local_constant_representative {K : ℝ} {n : ℕ} (hX : NoncollapsedRCD K n X) (hn : 2≤n) (p : X) (R c : ℝ) : ∃ d : SobolevSpace (hausdorff n X) hX.quadratic, (∀ᵐ x ∂hausdorff n X, |SobolevSpace.toLp (hausdorff n X) hX.quadratic d x|≤‖c‖₊) ∧ SobolevSpace.toLp (hausdorff n X) hX.quadratic d =ᵐ[(hausdorff n X).restrict (ball p R)] fun _ => c := by …Mentions: OAI.RegularPointCoordinates.NoncollapsedRCD, OAI.RegularPointCoordinates.SobolevSpace, OAI.RegularPointCoordinates.hausdorff, OAI.RegularPointCoordinates.SobolevSpace.toLp