On model order reduction for externally positive systems

摘要

In this paper, model order reduction is considered for externally positive systems. Since to verify external positivity of a given transfer function is NP-hard, an externally finitely positive system is introduced as an extension of an externally positive system. It is shown that the externally finitely positive system is useful for model order reduction of externally positive systems, where the q-Markov COVER theory is employed.