Perturbing eigenvalues of nonnegative centrosymmetric matrices

Roberto C. Díaz, Ana I. Julio, Yankis R. Linares

An $n\times n$ matrix $C$ is said to be {\it centrosymmetric} if it satisfies the relation $JCJ=C$, where $J$ is the $n\times n$ counteridentity matrix. Centrosymmetric matrices ha…