Authors: Bloch, Spencer¹ bloch@math.uchicago.edu, Esnault, Hélène² esnault@uni-essen.de, Kreimer, Dirk^3,4 kreimer@ihes.fr

Superior Title: Communications in Mathematical Physics. Sep2006, Vol. 267 Issue 1, p181-225. 45p.

Subject Terms: *QUANTUM field theory, *SCALAR field theory, *MATHEMATICAL physics, *CALCULUS of tensors, *POLYNOMIALS, *GRAPH theory