Combinatorics of n-point functions via Hopf algebra in quantum field theory
Mestre, Angela ; Oeckl, Robert
arXiv, 0505066 / Harvested from arXiv
Text on arXiv
We use a coproduct on the time-ordered algebra of field operators to derive simple relations between complete, connected and 1-particle irreducible n-point functions. Compared to traditional functional methods our approach is much more intrinsic and leads to efficient algorithms suitable for concrete computations. It may also be used to efficiently perform tree level computations.
Publié le : 2005-05-24
Classification:  Mathematical Physics,  High Energy Physics - Theory,  Mathematics - Combinatorics 
@article{0505066,
     author = {Mestre, Angela and Oeckl, Robert},
     title = {Combinatorics of n-point functions via Hopf algebra in quantum field
  theory},
     journal = {arXiv},
     volume = {2005},
     number = {0},
     year = {2005},
     language = {en},
     url = {http://dml.mathdoc.fr/item/0505066}
}

Mestre, Angela; Oeckl, Robert. Combinatorics of n-point functions via Hopf algebra in quantum field
  theory. arXiv, Tome 2005 (2005) no. 0, . http://gdmltest.u-ga.fr/item/0505066/