Abstract
We present a rigorous construction of the continuum limit for a perturbatively non-renormalizable euclidean quantum field theory: the Gross-Neveu model in two dimensions with bare propagator ▪/|p| 2−ϵ for ϵ>0 small. The construction proceeds via the control of the flow of Wilson's renormalization group around the non-gaussian ultraviolet stable fixed point in the space of effective actions.
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