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A solvable tensor field theory. (English) Zbl 1433.81127

Summary: We solve the closed Schwinger-Dyson equation for the 2-point function of a tensor field theory with a quartic melonic interaction, in terms of Lambert’s W function, using a perturbative expansion and Lagrange-Bürmann resummation. Higher-point functions are then obtained recursively.

MSC:

81T32 Matrix models and tensor models for quantum field theory
30B40 Analytic continuation of functions of one complex variable
40E99 Inversion theorems
35Q40 PDEs in connection with quantum mechanics

References:

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