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Function is a change of variables?

  1. Jul 5, 2014 #1
    Hi there!

    The question is: if I have to prove that a function is a change of variable it is sufficient to prove that the function is a diffeomorphism? i.e. prove that the function is bijective, differentiable, and its inverse is differentiable?

  2. jcsd
  3. Jul 6, 2014 #2


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    Science Advisor

    What, exactly, is your definition of "change of variables"? How does it differ from a general function?
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