Characterization of paired and Toeplitz + Hankel operators on the polydisc

Abstract

In this paper, we obtain a complete classification of Toeplitz + Hankel operators on the vector-valued Hardy space $H^2_{\mathcal{E}}(\mathbb{D}^n)$ over the polydisc $\mathbb{D}^n$ in $\mathbb{C}^n$ for $n\geq 1$. We also characterize the paired operators on $L^2(\mathbb{T}^n)$. For an inner function $θ\in H^\infty(\mathbb{D}^n)$, we further characterize $θ$-paired operators on $H^2(\mathbb{D}^n)$ with respect to the Beurling submodule $θH^2(\mathbb{D}^n)$.