Tutorial discussion of WAS (Weakly Additive Systems)
Abstract
A survey of some recent work in the area of weakly additive systems (WAS) is presented. Intuitively, these are the simplest class of nonlinear system originally termed (N sub 1) systems by Zadeh, and are characterized by time related behavior similar to linear systems. Although relatively simple in nature themselves many practical feedback systems have weakly additive open loop gain; hence the study of weakly additive systems is of potential significance.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 September 1974
 Bibcode:
 1974STIN...7530456S
 Keywords:

 Electric Networks;
 Nonlinear Systems;
 Feedback;
 Mathematical Models;
 Electronics and Electrical Engineering