Constructive Field Theory in Zero Dimension
Mathematical Physics
2014-11-20 v1 math.MP
Abstract
In this pedagogical note we propose to wander through five different methods to compute the number of connected graphs of the zero-dimensional field theory,in increasing order of sophistication. The note does not contain any new result but may be helpful to summarize the heart of constructive resummations, namely a replica trick and a forest formula.
Cite
@article{arxiv.0906.3524,
title = {Constructive Field Theory in Zero Dimension},
author = {V. Rivasseau},
journal= {arXiv preprint arXiv:0906.3524},
year = {2014}
}
Comments
12 pages,one figure