Documentation

LeanPool.NavierStokesAndEuler.Euler.PacketSourceScaleActual

The geometry error for the literal scale sequences, including the initial polynomial shear and frequency. Comparison with the normal-form costs is proved here, rather than imposed at the two exceptional starting stages.

noncomputable def EulerPacketSourceScaleActual.epsilon (J : ) (X a : ) (n : ) :

Epsilon, given by sqrt (a/previousShear J X n).

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    noncomputable def EulerPacketSourceScaleActual.priorError (J D : ) (X : ) (n : ) :

    Prior error, given by previousFrequency J D X n ^ (-(1/4 : ℝ)).

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      noncomputable def EulerPacketSourceScaleActual.neighborError (J D : ) (X c : ) (n : ) :

      Neighbor error, given by supportScale J X n * previousFrequency J D X n^c * previousShear J X n^c.

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        noncomputable def EulerPacketSourceScaleActual.geometryError (J D : ) (C c X : ) (a : ) (n : ) :

        Geometry error as an element of .

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          noncomputable def EulerPacketSourceScaleActual.baseErrorCost (J D : ) (C X : ) :

          Base error cost, given by 16*(128*X^(-500 : ℝ)*sourceTheta J C (scaleSequence J X) 0+X^(-(D:ℝ)/4)) * sourceTheta J C (scaleSequence J X) 0^60.

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            noncomputable def EulerPacketSourceScaleActual.geometryErrorCost (J D : ) (C c X : ) (a : ) (n : ) :

            Geometry error cost, given by geometryError J D C c X a n * sourceTheta J C (scaleSequence J X) n^60.

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              theorem EulerPacketSourceScaleActual.epsilon_zero_le (J : ) {X a : } (hX : 0 < X) (ha : 0 a) (ha₂ : a 2) :
              epsilon J X a 0 2 * X ^ (-500)
              theorem EulerPacketSourceScaleActual.priorError_zero_eq (J D : ) {X : } (hX : 0 < X) :
              priorError J D X 0 = X ^ (-D / 4)
              theorem EulerPacketSourceScaleActual.neighborError_le (J D : ) (hJ : 1 J) (X c : ) (hX : 0 < X) (hc : 0 c) (hbaseH : X ^ 1000 Real.exp (X / ↑(J - 1) ^ 7)) (hbaseK : X ^ D Real.exp (X / ↑(J - 1) ^ 4)) (n : ) :
              theorem EulerPacketSourceScaleActual.geometryError_nonneg (J D : ) (C c X : ) (a : ) (n : ) (hC : 0 C) (hX : 0 < X) :
              0 geometryError J D C c X a n
              theorem EulerPacketSourceScaleActual.geometryError_succ_le (J D : ) (hJ : 3 J) (C c X : ) (hC : 1 C) (hX : 1 X) (hc : 0 c) (a : ) (ha : ∀ (n : ), 0 a n) (ha₂ : ∀ (n : ), a n 2) (hbaseH : X ^ 1000 Real.exp (X / ↑(J - 1) ^ 7)) (hbaseK : X ^ D Real.exp (X / ↑(J - 1) ^ 4)) (n : ) :
              theorem EulerPacketSourceScaleActual.geometryError_zero_le (J D : ) (hJ : 3 J) (C c X : ) (hC : 1 C) (hX : 1 X) (hc : 0 c) (a : ) (ha : 0 a 0) (ha₂ : a 0 2) (hbaseH : X ^ 1000 Real.exp (X / ↑(J - 1) ^ 7)) (hbaseK : X ^ D Real.exp (X / ↑(J - 1) ^ 4)) :
              theorem EulerPacketSourceScaleActual.geometryErrorCost_bound (J D : ) (hJ : 3 J) (C c X : ) (hC : 1 C) (hX : 1 X) (hc : 0 c) (a : ) (ha : ∀ (n : ), 0 a n) (ha₂ : ∀ (n : ), a n 2) (hbaseH : X ^ 1000 Real.exp (X / ↑(J - 1) ^ 7)) (hbaseK : X ^ D Real.exp (X / ↑(J - 1) ^ 4)) (n : ) :
              theorem EulerPacketSourceScaleActual.baseErrorCost_nonneg (J D : ) (C X : ) (hC : 0 C) (hX : 0 X) :
              0 baseErrorCost J D C X
              theorem EulerPacketSourceScaleActual.baseErrorCost_tendsto_zero (J D : ) (hJ : 1 J) (hD : 1000 D) (C : ) (hC : 1 C) :

              The two genuinely exceptional polynomial terms are small with the specified D₀=1000 and any base frequency power D≥1000.

              structure EulerPacketSourceScaleActual.ActualBounds (J D : ) (C c X δ : ) :

              Actual bounds data, collecting normal, initial_shear, initial_frequency, coefficient.

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                theorem EulerPacketSourceScaleActual.actual_uniform_choice (D : ) (hD : 1000 D) (C c : ) (hC : 1 C) (hc : 0 c) :
                ∃ (J : ), 3 J ∀ (δ : ), 0 < δ∃ (X₀ : ), 8 X₀ ∀ (X : ), X₀ XActualBounds J D C c X δ

                The actual sequence, with both polynomial starting scales, has one choice of J followed by x₀ making every geometry error uniformly and summably small. This is uniform over the allowed frame coefficient a.