Abstract
Analytic interpolation in the variable 1/N of (λ/N|Φ N |:4)2 models is constructed at finite volume approximation. We prove Borel summability of the Taylor series at 1/N=0 of their Schwinger functions. We also give an extension of the domain of analyticity in the coupling constant.
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Communicated by K. Osterwalder
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Billionnet, C., Renouard, P. Analytic interpolation and Borel summability of the (λ/N|Φ N |:4)2 models. Commun.Math. Phys. 84, 257–295 (1982). https://doi.org/10.1007/BF01208572
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DOI: https://doi.org/10.1007/BF01208572