On stability of a weighted diamond of real polynomials
Vladimir L. Kharitonov, Roberto Tempo, I. Politecnico di Torino · 2005
Recently, a subset of the robust stability literature has concentrated on the so-called diamond of polynomials. The authors extend the extreme point result of B.R. Barmish et al. (1992) to the weighted diamond. They show that the weighted diamond enjoys a vertex stability property if and only if a certain interlacing condition on the weights is satisfied.>