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Homework Help: Differential Equation

  1. Apr 29, 2010 #1
    Stumbled upon

    d^2u/dp^2=p^2 u.

    I know the answer, however I can not figure out how to solve this. Any ideas at to which method to try?
  2. jcsd
  3. Apr 29, 2010 #2


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    Science Advisor
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    Gold Member

    I haven't actually tried it, but my first guess would be a series solution. You might get some kind of Bessel function.
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