When dealing with any tensor quantity, when making a coordinate transformation, we should put a bar (or whatever symbol) over the functions or over the indices? For exemple, should the metric coefficients ##g_{\mu \nu}## be written in another coord sys as ##\bar g_{\mu \nu}## or as ##g_{\bar \mu \bar \nu}##?(adsbygoogle = window.adsbygoogle || []).push({});

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# I Does the bar symbol go over the functions or over the indices? (tensors)

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