Structure theorems for operators associated with two domains related to $\mu$-synthesis

Bappa Bisai, Sourav Pal

A commuting tuple of $n$ operators $(S_1,\dots ,S_{n-1},P)$ defined on a Hilbert space $\mathcal{H}$, for which the closed symmetrized polydisc \[ Γ_n = \left\{ \left(\sum_{i=1}^…