Documentation

LeanPool.NavierStokesAndEuler.Euler.PacketBaseGuardScales

The literal base horizon and core radius satisfy the local-existence and localized coercivity guards after the final choice of the base scale.

noncomputable def EulerPacketBaseGuardScales.baseHorizon (J : ℕ) (X : ℝ) :

Base horizon, given by 6*(J : ℝ)^2*X^(-498 : ℝ).

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    Base radius, given by X^(-1000 : ℝ).

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      noncomputable def EulerPacketBaseGuardScales.baseGuardCost (J : ℕ) (K Be CM Cboundary X : ℝ) :

      Base guard cost, given by K*(baseHorizon J X^2/2)+Be*baseHorizon J X + Cboundary*(CM*X^1000+2)*baseRadius X^3*baseHorizon J X.

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        theorem EulerPacketBaseGuardScales.baseHorizon_pos (J : ℕ) (hJ : 1 ≤ J) {X : ℝ} (hX : 0 < X) :
        theorem EulerPacketBaseGuardScales.eventually_base_guards (J : ℕ) (hJ : 1 ≤ J) (K Be CM Cboundary T₀ : ℝ) (hT₀ : 0 < T₀) :
        ∀ᶠ (X : ℝ) in Filter.atTop, 1 < X ∧ 0 < baseHorizon J X ∧ baseHorizon J X ≤ T₀ ∧ 0 < baseRadius X ∧ baseRadius X ≤ 1 / 4 ∧ baseGuardCost J K Be CM Cboundary X ≤ 1 / 2