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GEM Lagrange Density in Detail (1/3)


Goal: Get to individual terms, no indicies.

Method: Expand, contract, and repeat.
  1. Start with the GEM Lagrange density which has 1 + 4 + 16 = 21 final terms.


  2. Expand , . Apply the definition of a contravariant derivative
    to a contravariant vector ( ) to , and :






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