Documentation

LeanPool.NavierStokesAndEuler.Euler.TimeLpLinearity

The actual continuous-path embedding as a bounded linear time-space map.

theorem EulerTimeLp.pathLp_add {E : Type u_1} [NormedAddCommGroup E] (T : ℝ) (hT : 0 ≤ T) (f g : C(↑(Set.Icc 0 T), E)) :
pathLp T hT (f + g) = pathLp T hT f + pathLp T hT g

The actual continuous-path inclusion preserves addition.

theorem EulerTimeLp.pathLp_smul {E : Type u_1} [NormedAddCommGroup E] [NormedSpace ℝ E] (T : ℝ) (hT : 0 ≤ T) (r : ℝ) (f : C(↑(Set.Icc 0 T), E)) :
pathLp T hT (r • f) = r • pathLp T hT f

The actual continuous-path inclusion preserves real scalar multiplication.

noncomputable def EulerTimeLp.pathLpOperator {E : Type u_1} [NormedAddCommGroup E] [NormedSpace ℝ E] (T : ℝ) (hT : 0 ≤ T) :
C(↑(Set.Icc 0 T), E) →L[ℝ] ↥(TimeLp T E)

The genuine continuous-path to Bochner L² embedding is a bounded linear map.

Equations
Instances For
    theorem EulerTimeLp.pathLpOperator_apply {E : Type u_1} [NormedAddCommGroup E] [NormedSpace ℝ E] (T : ℝ) (hT : 0 ≤ T) (f : C(↑(Set.Icc 0 T), E)) :
    (pathLpOperator T hT) f = pathLp T hT f

    The bounded embedding is exactly the actual L² equivalence class of the path.