Calculate how mass creates a curvature in relativity

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Does exist a system to calculate how mass creates a curvature in relativity, and how it creates redshift?
 

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HallsofIvy
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I presume that, since you talk about "curvature in relativity", you are aware of the Einstein Curvature Tensor. One uses the mass distribution to calculate the mass-energy tensor, from that derives the metric tensor, then the Curvature tensor from the metric tensor.

(I'm not claiming any one of those steps is an easy calculation!)
 

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