A. V. Bratchikov
Published 2009-10-19, updated 2009-10-20Version 2
For a wide class of nonlinear equations a perturbative solution is constructed. This class includes equations of motion of field theories. The solution possesses a graphical representation in terms of diagrams. To illustrate the formalism we consider the Yang-Mills field equations.
Color Confinement in Perturbation Theory from a Topological Model,
Quantisation of Extended Objects
Finite-size anyons and perturbation theory
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