Regarding number of degrees of freedom of a dynamical system (as well as it's relation to number of equations of motion)
61314
What is the definition of how to count degrees of freedom?
114172
Derivation of Hamilton-Jacobi theory using canonical transformations
125565
Counting the number of propagating degrees of freedom in Lorenz Gauge Electrodynamics
112209
Landau's argument for dependence of Lagrangian on magnitude of velocity
101185
Jacobian Matrix in dynamical systems
19831
How to get the degree of freedom when doing multiple linear regression?
141474
Prove the Total Mechanical Energy of the System is Conserved via Differential Equations
17121
Kinetic energy with respect to different reference frames
15565
How can one derive the Hamiltonian-function out of a differential equation of second order that describes the motion of a pendulum?
46053
How to find Hamiltonian from this simple Lagrangian? (tricky)
28057
Deriving $p = mv$ from translational symmetry (momentum conservation law)?
16159
In counting degrees of freedom of a linear molecule, why is rotation about the axis not counted?
7136
Is there a systematic way to obtain all conserved quantities of a system?
96880
How to obtain Hamiltonian formalism and phase space for Lagrangian with second-derivatives?
8070
What will be the trajectory of the given motion
46989
Degree of freedom paradox for a rigid body
121311
Simple Harmonic Motion - What are the units for $\omega_0$?