“…1 M. A. Vasquez Beltran and B. Jayawardhana are with the Engineering and Technology Institute Groningen, Faculty of Science and Engineering, University of Groningen, 9747AG Groningen, The Netherlands {m.a.vasquez.beltran;b.jayawardhana} @rug.nl 2 R. Peletier is with the Kapteyn Astronomical Institute, Faculty of Science and Engineering, University of Groningen, 9747AG Groningen, The Netherlands r.peletier@rug.nl thorough exposition of these properties and other fundamental mathematical properties can be found in [7], [10], [11]. Control systems properties, where Duhem operator is feedback interconnected with other nonlinear systems, have been studied in literature.…”