Constructive Field Theory in Zero Dimension

V. Rivasseau

Advances in Mathematical Physics, 2009, vol. 2009, issue 1

Abstract: 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 sophistication and power.

Date: 2009
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https://doi.org/10.1155/2009/180159

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnlamp:v:2009:y:2009:i:1:n:180159

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