Global reduction to the Kronecker canonical form of a C^r-family of time-invariant linear systems

Abstract

We present a geometric approach to the study of time-invariant systems, represented by quadruples of matrices (A, B, C, D). Our main goal is, given a differentiable family of such quadruples having constant Kronecker type, the obtention of a differentiable family of nonsingular matrices such that pointwise reduces each quadruple to its Kronecker reduced form. The key point is a geometrical construction of Kronecker reducing bases.