- #1

madsmh

- 32

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- TL;DR Summary
- Confusion by the abstract index notation introduced in Wald's General Relativity.

In the second paragraph on page 25 of Wald's

Mads

*General Relativity*he rewrites T^{acde}_b as g_{bf}g^{dh} g^{ej}T^{afc}_{hj} . Can anyone explain this? I am confused by the explantion given in the book. Especially puzzling is that the inverse of g seems to be applied twice, which I can't make sese of.Mads