Uniform complete Sobolev candidate from a later time #
At every nonnegative start time, the global mild curve supplies a bounded physical coefficient for a complete Sobolev mild equation on the same uniform time step.
theorem
CKN.Leray.regularisedBesselShiftedLinearCandidate
(ρ : RegMollifierProfile)
(ε : ℝ)
(hε : 0 < ε)
(k : ℕ)
(b : BesselPotentialSpace Foundation.Parabolic.L2Vec3 ComplexVec3 (↑(2 * k)) 2)
(b₀ : ↥RealVectorL2)
(hbJ : RegularizedMildJData b₀)
(a : ℝ)
(ha : 0 ≤ a)
:
let T := regularisedBesselUniformEnergyStep ρ ε hε k ‖b₀‖;
let g := regularisedGlobalComplexShiftPath ρ ε hε b₀ hbJ a T;
∃ (v : C(↑(RegularizedMildTimeInterval T), BesselPotentialSpace Foundation.Parabolic.L2Vec3 ComplexVec3 (↑(2 * k)) 2)),
regularisedBesselLinearLocalMap ρ ε hε k b T ⋯ g ‖b₀‖ ⋯ ⋯ v = v ∧ ‖v‖ ≤ 2 * ‖b‖
From any nonnegative start time and complete Sobolev initial state, the equation linearized around the shifted global mild curve has an H²ᵏ solution on a time step fixed by the initial physical L² bound.