Constructive Field Theory in Zero Dimension
Constructive field theory can be considered as a reorganization of perturbation theory in a convergent way. In this pedagogical note we propose to wander through five different methods to compute the number of connected graphs of the zero-dimensional 𝜙4 field theory, in increasing order of sophistic...
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Main Author: | |
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Format: | Article |
Language: | English |
Published: |
Wiley
2009-01-01
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Series: | Advances in Mathematical Physics |
Online Access: | http://dx.doi.org/10.1155/2009/180159 |
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