We place gauge forces as operator instances on a fixed variational backbone and locatelogarithmic running (including asymptotic freedom) at the rail/scale-instance level. Withinthe density-fixed contract and principal-symbol invariance under admissible elimination,we state a canonical Yang–Mills principal-operator normal form and separate S0-typerepresentative changes (principal-operator invariant) from RG readouts (scale-dependentoutputs).
Yunbeom Yi (Sun,) studied this question.