Toeplitz operators, ${\mathbb{T}}^m$-invariance and quasi-homogeneous symbols

Raul Quiroga-Barranco

For a partition $\mathbf{k}=(k_1,\dots ,k_m)$ of $n$ consider the group $\mathrm{U}(\mathbf{k})=\mathrm{U}(k_1)\times \cdots \times \mathrm{U}(k_m)$ block diagonally e…