Confusion regarding the solution to $\nabla ^2 \phi(\textbf{r}) = \rho(\textbf{r})$ using Green's function
71885
Derivatives of $ \frac{1}{r} $ and Dirac delta function
56543
Do we fix divergence of the vector potential $A$, because $\nabla \cdot \nabla \psi \ne 0$?
141167
What is $\int_{c}^{\infty}\Phi(a+bx) \phi( x ) dx$ for $c\in\mathbb{R}$
42392
Derivation of Maxwell's equations from field tensor lagrangian
145835
Closed form for CRT solution using Euler $\phi\,$ (totient)
61073
Why is electric flux defined as $\Phi = E \cdot S$?
94627
What's wrong with this derivation that $i\hbar = 0$?
79960
How to use Stokes theorem in the presence of holes?
49704
The algebraic solution and numerical solutions for eigenvectors are different. Why?
76175
Does the equation have a real solution...please help!
71465
solution of $y' = \exp \left(-\frac yx\right) + \frac yx$
45167
Deriving the speed of the propagation of a change in the Electromagnetic Field from Maxwell's Equations
63782
Snell's law in vector form
141750
Finding the steady state solution of a damped oscillator
144124
Exact Solutions to the Navier-Stokes Equations
25164
Velocity-Dependent Potential and Helmholtz Identities
112187
Is there a way to see that $ \nabla_\mu g_{\nu \rho} = 0 $ without explicit computation, where $\nabla_\mu$ refers to the covariant derivative?