Calculation record
Full finite-mode checks for smooth quartic coherent contact dynamics.
Exact action identities and conditional finite-mode stability, not a derived
master-field interaction or an empirical mass/coupling fit.
Research context
- Coherent quartic variation
A smooth quartic action has exactly coherent extrema, an explicit complete mode Hessian and finite-mode orbital stability, with the smooth-contact frequency multiplier.
- Diagnostic catalog
Reproduction commands and scope descriptions for every local finite diagnostic and helper.
Interpret numerical checks within the assumptions and limitations documented in these notes.