Constructive Field Theory in Zero Dimension

V. Rivasseau

Advances in Mathematical Physics, 2009, vol. 2009, 1-12

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 𠜙 4 field theory, in increasing order of sophistication and power.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlamp:180159

DOI: 10.1155/2009/180159

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