On numerical invariants for submodules $[(z-w{)}^2]$ in $H^2({\mathbb{D}}^2)$

Yin Liu, Yufeng Lu, Chao Zu

The paper derives explicit formulas for numerical invariants of the homogeneous submodule generated by (z‑w)^2 in the Hardy module over the bidisk and checks a monotonicity propert…