OAI/MathematicalPhysics/DefocusingNLS/Linear/HomogeneousWeightedDuhamel.lean

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Exponential time weights for whole-space inhomogeneous evolution

  1. theorem OAI.DefocusingNLS.homogeneous_integral_exp_Icc line 14
  2. theorem OAI.DefocusingNLS.homogeneousDuhamel_weighted_norm_le line 21

    Source documentation

    An exponentially bounded forcing gives the Bielecki contraction estimate.

    theorem homogeneousDuhamel_weighted_norm_le (a b k η t C : ℝ)
        (ha : 0 < a) (ha1 : a < 1) (hk : 8 < k) (hη : 0 < η) (ht : 0 ≤ t) (hC : 0 ≤ C)
        (r : ℝ → HomogeneousY a k) (hbound : ∀ τ ∈ Icc 0 t, ‖r τ‖ ≤ C * Real.exp (η * τ)) :
        Real.exp (-η * t) * ‖homogeneousDuhamel a b k ha ha1 hk t r‖ ≤ C / η := by
    …

    Mentions: OAI.DefocusingNLS.HomogeneousY, OAI.DefocusingNLS.homogeneousDuhamel