Contractivity and complete contractivity for finite dimensional Banach Spaces

Gadadhar Misra, Avijit Pal, Cherian Varughese

Choose an arbitrary but fixed set of $n\times n$ matrices $A_1,\dots ,A_m$ and let ${\Omega }_{\mathbf{A}}\subset {\mathbb{C}}^m$ be the unit ball with respect to the norm $\|\cdot\|_{\mathbf…