Renormalization Proof for Massive phi_4^4 Theory on Riemannian Manifolds

Details Renormalization Proof for Massive phi_4^4 Theory on Riemannian Manifolds Renormalization Proof for Massive phi_4^4 Theory on Riemannian Manifolds

2006-09-29

arxiv.org/abs/math-ph/0609089v2

Commun.Math.Phys.275:331-372,2007

Physics

Mathematical Physics

two paragraphs and few sentences of explanatory nature added. To appear in Commun. Math. Phys

Scientific paper

10.1007/s00220-007-0297-0

In this paper we present an inductive renormalizability proof for massive $\vp_4^4$ theory on Riemannian manifolds, based on the Wegner-Wilson flow equations of the Wilson renormalization group, adapted to perturbation theory. The proof goes in hand with bounds on the perturbative Schwinger functions which imply tree decay between their position arguments. An essential prerequisite are precise bounds on the short and long distance behaviour of the heat kernel on the manifold. With the aid of a regularity assumption (often taken for granted) we also show, that for suitable renormalization conditions the bare action takes the minimal form, that is to say, there appear the same counter terms as in flat space, apart from a logarithmically divergent one which is proportional to the scalar curvature.

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