Manuscript IX-A@1 · IX-A.tex · section · 55aa6f6d
The old bulk domain
Fixed spacetime, fields, and kernel carrier › The old bulk domain · lines 548–555
The pointwise product of bulk polynomials remains bulk: its coefficient kernels are symmetrized exterior tensor products. The wavefront condition (eq:MC) is preserved because a forbidden all-future or all-past tuple would already be forbidden in one of the nonzero tensor factors.