The feedback connection of a dynamical system and its dual, through nonlinear coupling elements, is shown to generate a pair of fundamental stationary principles. These provide a unified basis for both the classical Lagrangian and Hamiltonian treatments of dynamical systems aud modern work on nonlinear network theory and linear optimal-control theory.
Published in:
Electrical Engineers, Proceedings of the Institution of
(Volume:116
,
Issue:
8
)
Date of Publication: August 1969