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LeanPool.NavierStokesAndEuler.Euler.PacketInitializedCorrectionChoice

The original source budgets produce actual correction budgets for all sufficiently large frequencies. Primary estimates, coefficient estimates, radius guards and frequency guards are conclusions of the construction.

One source-dependent radius accommodates the literal terminal wave, the primary endpoint solve, all later linear solves, and every recursive grade.

The terminal amplitude and the recursive grade do not enter this radius choice. The original time profile is preserved exactly.

theorem EulerPacketTerminalDatum.initialized_correction_budgets_eventually (M : EulerMeanPacketProvider.Data) {U : Type u_1} [NormedAddCommGroup U] [InnerProductSpace U] [CompleteSpace U] (D : EulerTransversePacketProvider.Data U) (hTime : M.T = D.T) (τ : ) ( : 0 < τ) (hτT : τ < D.T) (B : EulerTransversePacketProvider.HistoryData (D.initial τ )) (δ : ) ( : 0 < δ) (hδ1 : δ 1) (ξ : U) (hs : tsupport EulerSpatialCutoffs.innerCutoffD.support) (α : ) ( : 0 < α) (L : EulerTransversePacketJoin.Budget D τ hτT B (Fin 4) 6) (NB : EulerTransversePacketJoin.NormalBudget D 6 L.R) {Rm : } (LM : EulerMeanPacketProvider.Budget M 6 Rm) (Cagree : EulerPacketCylinderField.SourceCoefficientAgreement M D) (Ξ : (Set.Icc 0 D.T)EulerSmoothLimit.SpaceEulerSmoothLimit.Space) ( : ∀ (t : (Set.Icc 0 D.T)), ContDiff (↑) (Ξ t)) (hF : ∀ (t : (Set.Icc 0 D.T)) (x : EulerSmoothLimit.Space), fderiv (Ξ t) x = (D.F.field t) x) (hdet : ∀ (t : (Set.Icc 0 D.T)) (x : EulerSmoothLimit.Space), Matrix.det (EulerPacketPiola.operatorMatrix ((D.F.field t) x)) = 1) :

One source-dependent initial radius and growth constant work at all sufficiently large frequencies for the literal truncation floor(k^ϑ).