Recent content by ziojoe

Thanks, that was exactly the answer I got myself after a while. Thanks again.

I have a little problem with the following exercise: "Consider the temperate distribution f\left(x\right)=\frac{1}{\left(x-i0\right)^2} Write f(x) like function of elementary temperate distributions and calculate its Fourier-transform." I am almost sure I have to use the identity...

I have a little trouble in demonstrating that the group velocity of an e.m. wave transform (in special relativity, by passing from an inertial frame to another) like the velocity of a particle with mass. So, \left( \frac{w}{c}, k_x, k_y, k_z\right) = \left( \frac{w}{c}, \vec k \ \right) is a...