The Hm expansion vanishes in the gaps between the large-scale cutoff supports. This is the endpoint input in the source's transported energy argument.
Every translated large-scale zeta cutoff vanishes in a gap of radius
tauP around a half-cell boundary.
The actual memory coefficient L_{m,n} is identically zero on every
large-scale cutoff gap.
Every recursively defined A_{m,n,r} tensor vanishes throughout a
large-scale cutoff gap. The induction uses the literal corrected
recursion, and only differentiates a function that is locally identically
zero there.
Each H_{m,r} vanishes in the same cutoff gap, since its entire
divergence field is spatially zero there.
The H_m expansion vanishes at every half-cell boundary.
Each endpoint potential in the telescope vanishes at every
half-cell boundary. This is the companion endpoint to Hm_eq_zero_at_halfCell.