Why can't the wave function and it's derivative be zero at the same point?
6957
Wavefunction and its derivative vanish at same point
40683
What's wrong with the square root version of the Klein-Gordon equation?
90716
Conservation of energy and wavefunctions
75390
How does one prove that if function's partial derivative respect to every variable is zero, function is constant?
79822
Problems with partial derivatives.
131424
which of the following is NOT a possible value of $(e^{f})''(0)$??
75452
Initial value problem with $t$ and $x'$
53361
If a measure only assumes values 0 or 1, is it a Dirac's delta?
6892
Why is it not true that $\int_0^{\pi} \sin(x)\; dx = 0$?
124499
Where is the error in my proof that all derivatives are continuous?
117387
Can we safely assume $\Psi(x,t) = \psi(x)e^{-i\omega t}$ always in QM?
56543
Do we fix divergence of the vector potential $A$, because $\nabla \cdot \nabla \psi \ne 0$?
105423
Why doesn't every integral from 0 to $2\pi$ equal zero?
68752
A few questions about infinite derivative.
16375
Is the function differentiable at $0$?
116188
Hydrogen radial wave function infinity at $r=0$
41889
Why is the $S_{z} =0$ state forbidden for photons?