Renormalization and Invariance in Quantum Field Theory

The subject matter of this Advanced Study Institute, which has been rendered possible by the generous support of NATO, gratefully acknow­ ledged here, is of central importance to quantum field theory today. The problems involved are both deep and complicated, to a point that perhaps does not find easily a parallel in other branches of theoret­ ical physics. From the first rule-of-thumb prescriptio...