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A Dyson's equation

  1. Aug 14, 2016 #1
    Hi,
    Is the Dyson's equation basis independent (for instance, I construct the basis set where the elements are atomic orbitals and those orbitals are non-orthogonal) ?

    What is the unperturbed retarded Green's function for one-particle case in matrix notation if the basis functions are not orthogonal?

    Thank you!
     
  2. jcsd
  3. Aug 19, 2016 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
     
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