Imposing the transeverse traceless gauge condition in xPert

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Gün Süer

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Sep 5, 2022, 4:17:20 PM9/5/22

to xAct Tensor Computer Algebra

I want to impose the transverse traceless gauge condition while I am evaluating certain expressions in terms of metric perturbations while using xPert. How can I accomplish this.

I want to impose TT gauge in the final expression in the notebook I have provided.