Calculation record

Test the revised current contraction, full variations and wave response.

Research context

  • A trace contribution to the mass current

    Adding a trace contraction preserves coherent simplex frequencies and the common core, removes a high-momentum secular degeneracy, and gives a positive conserved norm for the constant far-field linearization; master selection and full spatial stability remain open.

Interpret numerical checks within the assumptions and limitations documented in these notes.