Non-perturbative asymptotic improvement of perturbation theory and Mellin-Barnes representation

DOI10.3842/SIGMA.2010.079zbMath1218.41020arXiv0907.5593OpenAlexW2121952737MaRDI QIDQ542698

Samuel Friot, David Greynat

Publication date: 17 June 2011

Published in: SIGMA. Symmetry, Integrability and Geometry: Methods and Applications (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/0907.5593

zbMATH Keywords

field theories in lower dimensionsresurgencenon-perturbative effectsexactly and quasi-exactly solvable modelshyperasymptoticsMellin-Barnes representation

Mathematics Subject Classification ID

Asymptotic approximations, asymptotic expansions (steepest descent, etc.) (41A60) Asymptotic representations in the complex plane (30E15)

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