(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Essentially, my adviser just told me to get the equation, then expand it so that it doesn't have any tensors. That's it. Just get rid of the tensors.

He said that this would be normally found in some textbook...? I've searched a lot of books, but I never saw anything that didn't have the equations in tensor form.

2. Relevant equations

I got G_{μv}= 8πT_{μv}.

Reading further, I also got the following:

G_{μv}= R_{μv}- (1/2)g_{μv}R

R = g^{αβ}R_{αβ}

And I also found the Ricci tensor in terms of the Christoffel symbols but that's too long to type.

3. The attempt at a solution

What I tried doing is just plug in values of the greek indices and treat each one as a separate equation. However, when I use g_{αβ}= diag(-1, 1, 1, 1), the left hand side always becomes zero.

Is there any other value of the metric tensor that I can use?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: General Relativity Equations

**Physics Forums | Science Articles, Homework Help, Discussion**