Authors: Giovanni Felder, Giovanni Gallavotti

Title: Perturbation Theory and Non-Renormalizable Scalar Fields
Communication in Mathematical Physics, 102, 549--571, 1986

Abstract: Abstract. We study how to set up systematic summation rules that could permit us to interpret the divergent expressions arising in the perturbation theory of $: P(\phi) :_d$ when one does not allow any renormalization besides the usual coupling constants, mass and wave function renormalizations.

Key words:  Quantum fields, Perturbation theory, Renormalization theory, Non renormalizability