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arxiv: 1703.00840 · v2 · pith:DL6JJ5CWnew · submitted 2017-03-02 · ✦ hep-th · math.CO

Renormalized asymptotic enumeration of Feynman diagrams

classification ✦ hep-th math.CO
keywords asymptoticdiagramsanalysisenumerationexpansionsfeynmannumbersingularity
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A method to obtain all-order asymptotic results for the coefficients of perturbative expansions in zero-dimensional quantum field is described. The focus is on the enumeration of the number of skeleton or primitive diagrams of a certain QFT and its asymptotics. The procedure heavily applies techniques from singularity analysis and is related to resurgence. To utilize singularity analysis, a representation of the zero-dimensional path integral as a generalized hyperelliptic curve is deduced. As applications the full asymptotic expansions of the number of disconnected, connected, 1PI and skeleton Feynman diagrams in various theories are given.

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