Can anyone help me simplify the expression [itex]\frac{\delta g_{\mu\nu}}{\delta g^{\kappa\lambda}}[/itex]? I haven't seen a term like this before and I don't know how to proceed. It seems like it might be the product of some kronecker delta's but I'm not sure.(adsbygoogle = window.adsbygoogle || []).push({});

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# Confusing expression in GR

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