Recent content by Max Renn

Hi. The point ##u = h_{ds}(q)##, i.e. transporting from ##p## to ##q## by ##dt## and then from ##q## to ##u## by ##ds##. It's the same construction as section 6.3.

Well, you will be delighted to hear that I think I fixed the sign error.

Hi, I know it's a year late, but here's a derivation. I think there's a sign error in there somewhere, though. Let me know if you find it.

Oh! Is that the final form of the stress tensor? I wanted to clear up some things with the metric tensor, using some dubious manipulation of indices. That's ok (although the sign mistake is embarrassing). Thank you. This is my solution: \partial_\mu T^{\mu \nu} = \partial_\mu ( \partial^\mu...

Hi, I have a problem in classical field theory. I have a Lagrangian density \mathcal{L}=\frac{1}{2}\partial_\lambda \phi \partial^\lambda \phi + \frac{1}{3}\sigma\phi^3 . Upon solving the Euler-Lagrange equation for this density, I get an equation of motion for my scalar field \phi (x), where...