Manuscript XIV-C@1 · XIV-C.tex · section · a34d13df
A codimension-four characteristic stratum
J2: the retained characteristic configuration › A codimension-four characteristic stratum · lines 1014–1021
The three light-cone equations consequently do not meet transversally at this stratum. Their differential rank is two although the null-collinear stratum has codimension four. Neither number is the codimension eight of a three-vertex collision diagonal.