action functional
C24250
concept
An action functional is a mapping from possible configurations or paths of a physical system to a real number, whose extremization yields the system’s equations of motion via the principle of least action.
Observed surface forms (2)
- action functional in theoretical physics ×1
- string effective action ×1
Instances (4)
- Nambu–Goto action
- Einstein–Hilbert action
- heterotic supergravity via concept surface "string effective action"
- Polyakov action in string theory via concept surface "action functional in theoretical physics"