Iterates Profile Norms #
Support for the Armstrong–Vicol anomalous-diffusion formalization.
theorem
AVenhance.Infra.Section4.iterate_profile_gradient_norm
{u : ℝ → Homogenization.Vec 2 → ℝ}
{κ N L : ℝ}
{i : ℕ}
(hκ : 0 < κ)
(hN : 0 ≤ N)
(hL : 0 ≤ L)
(hp : iterateCoordinateEnergyProfile u κ N L i)
(w : List (Fin 2))
:
√κ * √(spaceTimeGradNormSq fun (t : ℝ) => spaceGrad (iterateSpatialWord w (u t))) ≤ N * iterateAnalyticWeight w.length i L
Every gradient word is controlled, including the gradient-only base at zero.
theorem
AVenhance.Infra.Section4.iterate_profile_mixed_norm
{u : ℝ → Homogenization.Vec 2 → ℝ}
{κ N L : ℝ}
{i : ℕ}
(hκ : 0 < κ)
(hN : 0 ≤ N)
(hL : 0 ≤ L)
(hp : iterateCoordinateEnergyProfile u κ N L i)
(v w : List (Fin 2))
(hvw : v.length = w.length)
(hv : 1 ≤ v.length ∨ 1 ≤ i)
{s : ℝ}
(hs : 0 ≤ s)
(hs1 : s ≤ 1)
:
√(l2NormSq (iterateSpatialWord v (u s))) + √κ * √(spaceTimeGradNormSq fun (t : ℝ) => spaceGrad (iterateSpatialWord w (u t))) ≤ 2 * N * iterateAnalyticWeight v.length i L
Mixed profile norms are used only at positive scalar order in the base.