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Complex conjugate variables as independent variables in polynomial equations

  1. Sep 26, 2008 #1
    Hi,
    Is there any trick to treat complex conjugate variables in polynomial equations as independent variables by adding some other constraint equation ? Say, we have polynomial equation $f(x,x^{*},y,...) = 0$. where x^{*} is the complex conjugate of variable $x$. I might think of taking $x = r e^{i \alpha} =z_{1}$ and $x^{*} = r e^{-i \alpha} = z_{2}$ i.e. in polar form and then taking the original equation $f(z_{1},z_{2},y,...) = 0$ intersecting with $z_{1} z_{2} = 1$. But I don't know if this is the correct way - I am missing something here, right ?

    Thanks in advance,

    Cheers,

    dm368
     
  2. jcsd
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