Authors : Giovanni Gallavotti

Title: Renormalization group and divergences

Abstract: Application of asymptotic freedom to the ultraviolet stability in Euclidean quantum field theories is revisited and illustrated through the hierarchical model making also use of a few technical developments that followed the original works of Wilson on the renormalization group.

Keywords: Renormalization Group, Hierarchical Model, Quantum Field Theory

Giovanni Gallavotti
INFN Fisica e Accademia dei Lincei
Universita di Roma Sapienza, 00185 Roma, Italy
giovanni.gallavotti@roma1.infn.it