Documentation

LeanPool.NavierStokesAndEuler.Euler.PacketInitialSupport

Related estimates used together by the same construction modules.

Common compact support for the two actual initial increments after the physical spatial dilation.

theorem EulerPhysicalL2Scaling.scale_support {V : Type u_1} [NormedAddCommGroup V] [NormedSpace V] (ell : ) (hell : 0 < ell) (f : EulerSmoothLimit.SpaceV) (R : ) (hs : tsupport fMetric.closedBall 0 R) :
tsupport (scale ell f)Metric.closedBall 0 (ell * R)
theorem EulerPacketInitial.high_scaled_support {P T : } [Fact (0 < P)] {hT : 0 T} {N : } {a : EulerPacketProfileRecursion.Profile} {support : Set EulerSmoothLimit.Space} (G : (i : ) → i NEulerPacketCylinderField.ProfileRegularity P T hT support (a i)) (t : (Set.Icc 0 T)) (κ k : ) (m : EulerSmoothLimit.Space) (ell : ) (hell : 0 < ell) (R : ) (hs : supportMetric.closedBall 0 R) :
tsupport (EulerPhysicalL2Scaling.scale ell fun (x : EulerSmoothLimit.Space) => high N κ (↑t) a (t, x, k * inner m x))Metric.closedBall 0 (ell * R)
theorem EulerPacketInitial.mean_scaled_support {N : } (κ k : ) (m : EulerSmoothLimit.Space) (ell : ) (hell : 0 < ell) (a : EulerPacketProfileRecursion.Profile) (hs : iN, ∀ (θ : ), (tsupport fun (x : EulerSmoothLimit.Space) => (a i).mean (0, x, θ)){x : EulerSmoothLimit.Space | ell x 2}) :

All actual source mean profiles have the same localized initial support. When L=0 every mean profile starts from zero.

The actual localized mean initial condition vanishes when the source boundary coefficient L is zero.

theorem EulerPacketCylinderField.joinedSource_mean_initial_support (P : ) [Fact (0 < P)] (M : EulerMeanPacketProvider.Data) {U : Type u_1} [NormedAddCommGroup U] [InnerProductSpace U] [CompleteSpace U] (D : EulerTransversePacketProvider.Data U) (hT : M.T = D.T) (τ : ) ( : 0 < τ) (hτT : τ < D.T) (B : EulerTransversePacketProvider.HistoryData (D.initial τ )) (primary : EulerPacketProfileRecursion.Profile) (hprimary : ProfileRegularity P M.T D.support primary) (hm : primary.mean = 0) (p : ) (θ : ) :
(tsupport fun (x : EulerSmoothLimit.Space) => (joinedSourceProfiles P M D τ hτT B primary p).mean (0, x, θ)){x : EulerSmoothLimit.Space | M. x 2}
theorem EulerPacketCylinderField.joinedSource_mean_initial_zero (P : ) [Fact (0 < P)] (M : EulerMeanPacketProvider.Data) {U : Type u_1} [NormedAddCommGroup U] [InnerProductSpace U] [CompleteSpace U] (D : EulerTransversePacketProvider.Data U) (hT : M.T = D.T) (τ : ) ( : 0 < τ) (hτT : τ < D.T) (B : EulerTransversePacketProvider.HistoryData (D.initial τ )) (primary : EulerPacketProfileRecursion.Profile) (hprimary : ProfileRegularity P M.T D.support primary) (hm : primary.mean = 0) (hL : M.L = 0) (p : ) (x : EulerSmoothLimit.Space) (θ : ) :
(joinedSourceProfiles P M D τ hτT B primary p).mean (0, x, θ) = 0