OAI/MathematicalPhysics/DefocusingNLS/Linear/HomogeneousFreeTestDerivative.lean

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The explicit adjoint free generator on Schwartz tests

The Fourier-test generator has coefficients -a+ib, -i|xi|² and the negative half Euler derivative. These are computed from the exact similarity action, with the twelve-dimensional Jacobian already included.

  1. theorem OAI.DefocusingNLS.hasDerivAt_homogeneousPhysicalAmplitude line 22