Eigenvalue contour lines of Kac-Murdock-Szego matrices with a complex parameter

George Fikioris, Christos Papapanos

A previous paper studied the so-called borderline curves of the Kac--Murdock--Szegő matrix $K_n(\rho )={\left[{\rho }^{|j-k|}\right]}_{j,k=1}^n$, where $\rho \in \mathbb{C}$. These are the leve…