Universal Hopf Algebra of Renormalization and Hopf Algebras of Rooted Trees

Abstract

In this paper we are going to find a rooted tree representation from universal Hopf algebra of renormalization (in Connes-Marcolli's approach in the study of renormalizable Quantum Field Theories under the scheme minimal subtraction in dimensional regularization). With attention to this new picture, interesting relations between this specific Hopf algebra and some important Hopf algebras of rooted trees and also Hopf algebra of (quasi-) symmetric functions are obtained. And moreover a new interpretation from universal singular frame, based on Hall rooted trees, is deduced such that it can be applied to the physical information of a renormalizable theory such as counterterms.