Where can I find an accessible proof of Buchdahl's theorem, which states that in general relativity GM/(c^2*R) must be less than 4/9?(adsbygoogle = window.adsbygoogle || []).push({});

Any help would be greatly appreciated.

Thank You in Advance.

**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!

# Proof of Buchdahl's theorem?

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