Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Definition of inertial frame in GR?

  1. Feb 25, 2013 #1
    How do we mathematically define a inertial frame in GR?
    Is it only a basis in some tangentspace or does it have to be induced by a coordinatechart? :/
  2. jcsd
  3. Feb 25, 2013 #2

    Ben Niehoff

    User Avatar
    Science Advisor
    Gold Member

    It's only a basis in the tangent space. But you can always find local coordinates that induce this basis at a single point. They are called normal coordinates.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook