Quantity conserved for the 3D spherically symmetric harmonic potential $V(r)=\alpha r^2$
102743
Is there an analog to the Runge-Lenz vector for a 3D spherically symmetric harmonic potential?
84827
Why is the magnetic field of a spherically symmetric current zero?
69945
A PDE exercise from Gilbarg Trudinger. problem 2.2
137451
Does there exist a differentiable conservative vector field with non - vanishing curl?
258
Existence of orthogonal coordinates on a Riemannian manifold
148541
Quantization of a particle on a spherical surface
16293
N-dimensional generalization of vector curl from elements of Jacobian
24976
An uniformly charged infinite surface plane
61542
conversion of laplacian from cartesian to spherical coordinates
106431
Remaining volume of a sphere
150081
Deriving Lagrangian density for electromagnetic field
155492
Exercise on local and global symmetry for a given Lagrangian density
125142
Example where Hamiltonian $H \neq T+V=E$, but $E=T+V$ is conserved
17700
Find all possible functions, $F(r)$, harmonic in $2$ and $3$ dimensions,
99194
Scale invariance symmetry as a simple argument in an electrostatics problem
10953
Elementary argument for conservation laws from symmetries *without* using the Lagrangian formalism
116300
Electric Potential produced by Hollow Sphere