Thank you for opening the third edition of this monograph, dedicated to dissipative linear or
nonlinear, autonomous or time-varying, smooth or nonsmooth, single-valued or set-valued …

Four theorems are presented in this brief by performing boundary analysis of the derivative
of driving point impedance functions evaluated at the origin. Also, the circuits corresponding …

Suboptimal controllers have been proposed to deal with robust glucose regulation problem
at type 1 diabetic patients. The features of such controllers involve robust stability and robust …

This paper studies the stabilization and passification of a class of distributed-order linear
time-invariant systems, by using methods of preservation in the frequency domain. Results …

This paper concerns the characterization of positive real matrices generated by substitutions
(of the Laplace variable s) in scalar rational transfer function by matrix positive real functions …

In this paper, we proved that the sets of strict positive real functions with zero relative degree
(SPR0) and positive real (PR) single-input-single-output functions are closed under linear …

In this work necessary conditions on one side are sufficient conditions on another side given
such that the product of strictly positive real (SPR) functions to be an SPR 0 function. Also …

Positive real systems were first discovered and studied in the Networks and Circuits
scientific community, by the German scientist Wilhelm Cauer in his 1926 Ph. D. thesis [1–4] …

In this work it is presented a generalization on the properties preserved on 9/ functions to
irrational/functions. Particularly, we are interested in passive systems with distributed …

We are concerned in this article with controlled linear time-invariant multi input multi output
systems in continuous-time. We study here the preservation under strict positive real …