OAI/MathematicalPhysics/DefocusingNLS/Spectrum/SpectralRemoteReductionStep.lean

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One exact near-identity reduction step for the four remote coordinates. The commutator cancels the off-block coefficient before any norm estimate.

  1. abbrev OAI.DefocusingNLS.SpectralRemoteSpace line 13
  2. abbrev OAI.DefocusingNLS.SpectralRemoteOperator line 14
  3. theorem OAI.DefocusingNLS.spectralRemote_near_identity_inverse line 16
  4. def OAI.DefocusingNLS.spectralRemoteReducedRemainder line 35
  5. theorem OAI.DefocusingNLS.spectralRemote_reduction_identity line 39
  6. theorem OAI.DefocusingNLS.spectralRemote_reduction_bound line 50