v 2 3 1 O ct 2 00 5 Combinatorics of renormalization as matrix calculus

Abstract

We give a simple presentation of the combinatorics of renormalization in perturbative quantum field theory in terms of triangular matrices. The prescription, that may be of calculational value, is derived from first principles, to wit, the “Birkhoff decomposition” in the Hopf-algebraic description of renormalization by Connes and Kreimer. 2001 PACS Classification: 03.70.+k, 11.10.Gh, 02.10.Hh, 02.10.Ox

Cite this paper

@inproceedings{EbrahimiFard2005v23, title={v 2 3 1 O ct 2 00 5 Combinatorics of renormalization as matrix calculus}, author={Kurusch Ebrahimi-Fard and Jos{\'e} M. Gracia-Bond́ıa and Li Guo and Joseph C. V{\'a}rilly}, year={2005} }