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

A General relativity. What does momentum conservation mean?

  1. Apr 13, 2017 #1
    In general relativity, does momentum conservation mean conservation of 4-momentum or 3-momentum
     
    Last edited: Apr 13, 2017
  2. jcsd
  3. Apr 13, 2017 #2

    Dale

    Staff: Mentor

    Conservation of 4 momentum includes the conservation of 3 momentum, the conservation of energy, and the conservation of mass
     
  4. Apr 13, 2017 #3
    I know that. But I am asking the definition of the phrase "Momentum conservation" in the context of GR. Does it mean 4- or 3-momentum conservation?
     
  5. Apr 13, 2017 #4

    Dale

    Staff: Mentor

    I don't think there is a general rule. Each author should clarify their meaning
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted