Operators and Matrices · Volume 15, Issue 1 The convex invertible cone structure of positive real odd rational matrix functions 15-25 Pages 357-379 DOI 10.7153/oam-2021-15-25 Downloads Short PDF Full PDF PNG Authors S. ter Horst A. Naudé Keywords positive real odd matrix functions lossless systems descriptor systems system inversion transfer function zeros and poles Subject classes 34A09 93B50 93B55 93C05 65L80