On local non-tangential growth of the resolvent of a banded Toeplitz operator

We study the growth of the resolvent of a Hardy–Toeplitz operator $T_b$ with a Laurent polynomial symbol (\emph{i.e., } the matrix $T_b$ is banded), at the neighborhood of a point $w_0\in \mathrm{\partial }(\sigma (T_b))$ on the boundary of its spectrum. We show that such growth is inverse linear in some non-tangential domains at the vertex $w_0$, provided that $w_0$ does not belong to a certain finite set on the complex plane.