III.D17 — Spectral Polarity

For each primitive sector S_g, the spectral polarity pol(S_g) = ‖P_{χ₊}(S_g)‖/‖P_{χ₋}(S_g)‖. D: χ₊-dominant, B: χ₊-dominant, C: χ₋-dominant, A: BALANCED (pol = 1). Only the A-sector has equal polarity.