Calculational Methods for g

  • Eleftherios N. Economou
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 7)


There are two basic approaches to the approximate calculation of Green’s functions. One is based upon the differential equation obeyed by g. In the other a perturbation expansion is employed where g is expressed as a series, the terms of which involve the unperturbed go and the interaction potential v(rr’).


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Copyright information

© Springer-Verlag Berlin Heidelberg 1983

Authors and Affiliations

  • Eleftherios N. Economou
    • 1
  1. 1.Department of PhysicsUniversity of CreteHeraklion, CreteGreece

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