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What makes it more "gravity-wavy" than the fi or psi scalar of the vector perturbations? (Im talking about metric perturbations)
Thanks!
Thanks!
the_pulp said:What makes it more "gravity-wavy" than the fi or psi scalar of the vector perturbations? (Im talking about metric perturbations)
Thanks!
dextercioby said:Can you first figure out why you need to perturb the metric tensor? Then, if you write [itex] g_{\mu\nu} = \eta_{\mu\nu} + \mbox{first order perturbation} [/itex], how do you balance the indices?
the_pulp said:What makes it more "gravity-wavy" than the fi or psi scalar of the vector perturbations? (Im talking about metric perturbations)