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Calculus of Variations.

  1. Aug 12, 2006 #1
    Could anybody recommend any texts on Calculus of Variations?

    Unlike most areas of mathematics I'm finding it difficult to obtain standard texts.
  2. jcsd
  3. Aug 15, 2006 #2


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    An easy book on the subject is Weinstock's "Calculus of Variations with Applications to Physics and Engineering".

  4. Aug 16, 2006 #3
    Thanks. I hit a wall when reading Nakahara's Geometry, Topology and Physics. In chapter 10 he takes the variation of the action of a scalar field and the Einstein-Hilbert action, equates them both to zero and ends up with the Field Equations.

    My basic problem is I don't know how to take a variation with respect to a tensor, such as the metric.
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