Manuscript X-G-ST@1 · X-G-ST.tex · scope · 3c97567f
What is new below
Frozen operators, switches, and the predecessor interface › The completed scalar and three-tree interface · lines 595–606
is new below{ The new free construction adds independent auxiliary and ghost fields and proves compatibility of their causal relations.
The new obstruction tests whether the fixed source map (eq:mixed) can be the classical part of a variational retarded map on all free inputs.
Neither task requires constructing the predecessor trees again. Their admission is not used to prove the reciprocity obstruction.}