OAI/Analysis/LipschitzHilbert/Fourier/SchwartzBandEnergy.lean

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The two band-energy inequalities used by the actual cell-average comparison, proved from Mathlib's Schwartz Plancherel theorem.

  1. theorem OAI.LipschitzHilbert.schwartz_fourier_deriv line 16
  2. theorem OAI.LipschitzHilbert.norm_fourier_deriv_coefficient line 22
  3. theorem OAI.LipschitzHilbert.schwartz_band_derivative_upper line 27
  4. theorem OAI.LipschitzHilbert.schwartz_band_derivative_lower line 46