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Scaling near the upper critical dimensionality in the localization theory
I. M. Suslov
The phenomenon of upper critical dimensionality d_c2 has been studied from the viewpoint of the scaling concepts. The Thouless number g(L) is not the only essential variable in sca…
Structure of High Order Corrections to Lipatov's Asymptotics
I. M. Suslov
High orders of perturbation theory can be calculated by the Lipatov method, whereby they are determined by saddle-point configurations (instantons) of the corresponding functional…
Gell-Mann - Low Function in the Phi^4 Theory
I. M. Suslov
An algorithm is proposed for the determination of the asymptotics of a sum of a perturbation series from the given values of its coefficients in the strong-coupling limit. When app…
High orders of perturbation theory: are renormalons significant?
I. M. Suslov
According to Lipatov, the high orders of perturbation theory are determined by saddle-point configurations (instantons) of the corresponding functional integrals. According to t'Ho…