Abstract
In theP(φ)2 model it is proved that the perturbation series for the infinite volume Schwinger functionsS(λ) are asymptotic in the limit as the coupling constant λ goes to zero. We also give conditions which imply smoothness ofS(λ) at arbitrary λ.
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Communicated by A. S. Wightman
Supported by National Science, Foundation Grant NSF-GP-24003.
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Dimock, J. Asymptotic perturbation expansion in theP(φ)2 quantum field theory. Commun.Math. Phys. 35, 347–356 (1974). https://doi.org/10.1007/BF01646354
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DOI: https://doi.org/10.1007/BF01646354