LG80 Double gray: Brillouin zone

Irreducible domain & Special lines and points

K-Stratum symbol, k* - star of general stratum point, |k*| - Star order, TP - Typical stratum point, |F| - Little co-group order,
F - Little co-group elements (exponents in the monomial in the generators {t, t, C₆, U_x, σ_h, ẽ′, Θ}),
IRs - Ordinals of associated IRs, |IRs| - IRs' dimensions, |Alwd| - Allowed reprresetations' dimensions