Functional integral with "phi4" term in the action beyond standard perturbative methods
J. Bohacik, P. Presnajder
Abstract
We propose the another, in principe nonperturbative, method of the evaluatiom of the Wiener functional integral for "phi4" term in the action. We find the "generalized" Gelfand-Yaglom differential equation implying the functional integral in the continuum limit.
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