文档介绍：arXiv:hep-th/9510087 v2 14 Mar 1996
Abstract
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1. Introduction
There are two senses in which we may say that a theory is perturbatively
renormalizable. The first is that the theory satisfies the old Dyson criterion,
that the Lagrangian density should contain only operators of dimensionality
four or This condition is a necessary (though not sufficient) requirement
for infinities to be cancel