Definition:Action of Physical System
Jump to navigation
Jump to search
Definition
Let $S$ be an integral functional.
Suppose that equations of motion of a physical system are to be derived from $S$ by the Principle of Stationary Action.
Then $S$ is the action of a physical system.
Sources
- 1963: I.M. Gelfand and S.V. Fomin: Calculus of Variations ... (previous) ... (next): $\S 4.21$: The Principle of Least Action