The next-to-ladder approximation for Dyson-Schwinger equations
arXiv:hep-th/0612180 · doi:10.1016/j.physletb.2007.01.018
Abstract
We solve the linear Dyson Schwinger equation for a massless vertex in Yukawa theory, iterating the first two primitive graphs.
5 pages, final version as to appear in PLB
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