Classical trajectories that are not a minimum of the action
40211
Type of stationary point in Hamilton's principle
114901
In what sense is the proper/effective action $\Gamma[\phi_c]$ a quantum-corrected classical action $S[\phi]$?
17607
Open maps which are not continuous
101896
tangential acceleration for uniform circular motion
153727
Constant term in Lagrangian
100550
Plotting a set of trajectories (not a vector field) in 3D
24472
Graphs of the motions - physical
52316
Geodesics and Curves on a Plane
25874
Showing that a certain map is not flat by explicit counterexample
126142
Action principle, Lagrangian mechanics, Hamiltonian mechanics, and conservation laws when assuming Aristotelian mechanics $F=mv$
69199
How to find the continuous transformations which leave the action invariant?
63098
Properly discontinuous actions and discrete groups in complete Riemannian manifolds.
13644
Is the change in the Lagrangian always a total derivative for symmetry transformations of the action?
76125
Kinematics with non constant acceleration
46053
How to find Hamiltonian from this simple Lagrangian? (tricky)
136592
Examples of manifolds that are not boundaries
68906
Do the same equations of motion imply the same Lagrangians?