many body - How to obtain the quasiparticle equation from Dyson equation? - Physics Stack Exchange
Recursive graphical solution of closed Schwinger–Dyson equations in φ4-theory. (I). Generation of connected and one-particle irreducible Feynman diagrams - ScienceDirect
Recursive graphical solution of closed Schwinger–Dyson equations in φ4-theory. (I). Generation of connected and one-particle irreducible Feynman diagrams - ScienceDirect
Schwinger-Dyson equation for the 4-point vertex. | Download Scientific Diagram