Documentation

LeanPool.AnomalousDiffusion.AVenhance.Infra.FullTheorem.Separation.WordEnergy

Differentiated energies of a classical solution #

For an ordered derivative word w, the energy ‖∂^w θ(s)‖² of a classical solution is continuous on [0,T] and has the derivative -2κ ‖∇∂^w θ‖² - 2 C_w(s) at every s > 0, where C_w(s) = ∫ ∂^wθ (∂^w(b·∇θ) - b·∇∂^wθ) is the commutator pairing. The gradient dissipation is continuous on [0,∞).

noncomputable def AVenhance.Infra.FullTheorem.Separation.wDiss (w : List (Fin 2)) (θ : ℝ → Homogenization.Vec 2 → ℝ) (s : ℝ) :

‖∇∂^w θ(s)‖²_{L²(cell)}.

Equations
  • One or more equations did not get rendered due to their size.
Instances For
    noncomputable def AVenhance.Infra.FullTheorem.Separation.wComm (w : List (Fin 2)) (Ψ θ : ℝ → Homogenization.Vec 2 → ℝ) (s : ℝ) :

    The commutator pairing ∫ ∂^wθ (∂^w(b·∇θ) - b·∇∂^wθ).

    Equations
    • One or more equations did not get rendered due to their size.
    Instances For
      theorem AVenhance.Infra.FullTheorem.Separation.wEnergy_hasDerivAt {Ψ θ : ℝ → Homogenization.Vec 2 → ℝ} {κ : ℝ} {θ₀ : Homogenization.Vec 2 → ℝ} (hΨ : IsAdmissibleStream Ψ) (hsol : IsClassicalSol (streamVel Ψ) κ (fun (x : ℝ) (x_1 : Homogenization.Vec 2) => 0) θ₀ θ) (w : List (Fin 2)) {t : ℝ} (ht : 0 < t) :
      HasDerivAt (wEnergy w θ) (-2 * κ * wDiss w θ t - 2 * wComm w Ψ θ t) t