© 1996 by Institute of Mathematics and its Applications
Normalized coprime factorizations in continuous and discrete timea joint state-space approach
Fachbereich Mathematik, Universität Kaiserslautern Kaiserslautern, Germany
Based on state-space formulae for coprime factorizations over
and an algebraic characterization of J-inner functions, normalized doubly coprime factorizations for different classes of continuous-time and discrete-time transfer functions are derived by using a single general construction method. The parametrization of the factors is in terms of the stabilizing solutions of general degenerate continuous-time and discrete-time Riccati equations respectively, which are obtained by examining statespace representations of J-normalized factor matrices.