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

Abstract

In this paper, we study numerical invariants associated with a homogeneous submodule of the Hardy module over the bidisk. We focus on the submodule generated by the polynomial $(z-w{)}^2$ and obtain explicit formulas for the corresponding invariants. As an application, we verify the monotonicity property in this concrete setting. Our results provide a detailed example illustrating the behavior of these invariants beyond the linear case.

References in corpus (1)

• Hilbert-Schmidtness of the $M_{\theta ,\phi }$-type submodules