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Homework Statement
The problem is conveniently located here:
http://www.dur.ac.uk/resources/cpt/graduate/lectures/mscps.pdf
Problem no. 31. There's even a solution, here:
http://www.dur.ac.uk/resources/cpt/graduate/lectures/grsolns.pdf
However, I don't understand the solution. How does the antisymmetry of [tex]F^{\rho\lambda}[/tex] allow us to rewrite [tex]\nabla_\rho F_{\sigma\lambda} - \frac{1}{2} \nabla_\sigma F_{\rho\lambda}[/tex] as [tex]\frac{1}{2}\left ( \nabla_\rho F_{\sigma\lambda} - \nabla_\lambda F_{\sigma\rho} - \nabla_\sigma F_{\rho\lambda} \right )[/tex] ? I just don't see it. This implies that [tex]\nabla_\rho F_{\sigma\lambda} = -\nabla_\lambda F_{\sigma\rho}[/tex], which doesn't seem right...
Homework Equations
See above.
The Attempt at a Solution
See above.
Any help will be much appreciated!
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