Recent content by mattie_p

Hey, thanks for having a look at this, I think latex has just made the r look like a tau. It's meant to read Integral dr*r*(U'^2 + U^4)^1/2 Also, the integration region is between 0 and some constant L, but that will lead to an inifinity, so the problem is actually integrated between 0 and...

Hello people. I've got an action which needs minimising \int dr \ r \sqrt{U'^{2}+U^{4}} Where U(r). Simply plugging this into the EL equations yields a nasty looking 2nd order nonlinear differential equation. I'm just wondering if there's an easier way of solving for U(r). I've tried...