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What's the meaning of?

  1. Sep 6, 2006 #1
    In SR you can write the Geodesic equation as:

    [tex] \nabla _{u} u [/tex] where "u" is the 4-dimensional velocity..

    Then my question is if we define the 10- component vector:

    [tex] W= (g_{00}.g_{11},g_{22},g_{33},g_{01},g_{02},g_{03}.g_{12},g_{13},g_{23})


    Then..what's the meaning of the Covariant derivative:

    [tex] \nabla _{\dot W} \dot W [/tex] the "dot" means time derivative of the vector, i think if we could obtain "Einstein equations" in that form...:rolleyes: :rolleyes:
  2. jcsd
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