For some group actions on simpler decompositions — in finite spaces — of
point-sets at the vertices of n-dimensional cubes into point-sets at the vertices
of the cubes' n-2-dimensional subcubes . . . See the Feb. 13, 2026, post
Cube Space as well as the post below from the date of Daverman's death —
Another finite-geometry decomposition result that can be applied to the
representation, by 8-set-four-colorings, of lines in the Klein quadric —
