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I wonder how fractional derivatives are defined in cylindrical coordinate? Does anyone have any idea?

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  • $\begingroup$ How do you define your fractional derivative $\endgroup$
    – Guy Fsone
    Commented Sep 30, 2017 at 15:38
  • $\begingroup$ $F(\partial^{\alpha}_x f(x)) = -|k|^{\alpha} f(k)$ this is the difinition in fourier space @GuyFsone $\endgroup$
    – OLIVER range
    Commented Sep 30, 2017 at 18:17

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