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Question: I would like to ask how to solve the following problem that I have encountered with.

Question:I would like to ask how to solve the following problem that I have encountered with.

Gansukh 5
February 12 2013
1

Hi all, 

Rab▽a▽bΦ 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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