Columbia subject headings:
Field theory (Physics)
Geometry, Differential.
Hamilton-Jacobi equations.
Lagrange equations.
Mechanics.
Harvard subject headings:
Field theory (Physics)
Geometry, Differential.
Hamilton-Jacobi equations.
Lagrange equations.
Mechanics.
Princeton subject headings:
Field theory (Physics)
Geometry, Differential.
Hamilton-Jacobi equations.
Lagrange equations.
Mechanics.