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1982 Borel summability of the $1/N$ expansion for the $N$-vector [${\rm O}(N)$ nonlinear $\sigma $] models
J. Fröhlich, A. Mardin, V. Rivasseau
Comm. Math. Phys. 86(1): 87-110 (1982).
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Vol.86 • No. 1 • 1982
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