I am studying the case of infinitesimal proper Lorentz transformations, and iI stumble at this notation result : $\Delta\omega^\alpha_\gamma g_{\alpha\beta} g^\beta_\delta = \Delta \omega_{\delta\gamma}$?
I know that the following is true : $x^\mu = g^{\mu\sigma} x_\sigma$. So what happens here is that the metric tensor raises the index and then the raised index changes to the Greek letter which is not contracted, μ in this case. How does the same applies in the above equation which iI cannot understand ?
Edit : Prahar was correct iI had made a mistake. I solved it and this is how :
$g_{\alpha\beta} g^\beta_\delta = g_{\alpha\delta}$
$\Delta\omega^\alpha_\gamma*g_{\alpha\delta}=\Delta\omega_{\delta\gamma}$$\Delta\omega^\alpha_\gamma\cdot g_{\alpha\delta}=\Delta\omega_{\delta\gamma}$