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11 years, 24 days

MaplePrimes Activity

These are questions asked by Gansukh

Hi all, 

RababΦ where Rab -Ricci tensor, and Φ-Scallar field, and I think derivation is covariant derivative.

How should I contract the indeces of this expression on Mapple?

Please, help me to figure it out. 

Thanks in advance.

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