Cyberneticist Cybernetics. Cyberneticist A cyberneticist or a cybernetician is a person who practices cybernetics. Heinz von Foerster once told Stuart Umpleby that Norbert Wiener preferred the term "cybernetician" rather than "cyberneticist", perhaps because Wiener was a mathematician rather than a physicist. The word cyberneticist was used by Nicolas Rashevsky who began as a theoretical physicist, Robert Rosen, who began his career as a mathematician, regarded Neuro cybernetics—and more generally Biocybernetics—as fields closely allied to Mathematical Biology and Mathematical Biophysics in which control theory and dynamical system theories also play significant roles. Today "cybernetician" is preferred by members of the American Society
Wiener–Hopf method is analytic in the upper half-plane, analytic continuation guarantees existence of an entire function which coincides with the left- or right-hand sides in their respective half-planes. Furthermore, since it can be shown that the functions on either side of the above equation decay at large , an application of Liouville's theorem shows that this entire function is identically zero, therefore and so Wiener–Hopf method The Wiener–Hopf method is a mathematical technique widely used in applied mathematics. It was initially developed by Norbert Wiener and Eberhard Hopf as a method to solve systems of integral equations, but has found wider use