a)Can we add extra terms with covariant derivative equal to 0 so the coupling constant in relativity is dimensionless?.(adsbygoogle = window.adsbygoogle || []).push({});

b)for a metric gab that is time independent,can we define an "energy" term E so dE/dt is conserved?...

c)from the Wheller-De Witt equation can we construct a linear differential equation time dependent and first order in functional derivatives respect to gab?..

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# Some questions on GR

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