On the Positivity of a Class of Cauchy-Like Matrices

Augusto Ferrante

Let $0<\hat{I}{»}_1<\cdots <\hat{I}{»}_n$. Motivated by a problem related to Lyapunov equations we consider a class of Cauchy-like matrices whose elements have the form $C_{ij}=\frac{r_i(k,l)+r_j(k…