Abstract
The Painlevé test of the system of nonlinear partial differential first-order equations u1+uk=k1v2+k2u2+k3uv, v1−vx=−k1v2−k2u2−k3uv is performed. The system includes the Carleman and McKean models which are caricatures of the Boltzmann equation. For k 1=k 2=0 the system describes the interaction of two waves u and v. The results of the Painlevé test are discussed in connection with whether or not the system is integrable. We also study in detail the constraint on ϕ (whose vanishing defines a noncharacteristic hypersurface S) which arises at the resonance.
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Steeb, W.H., Euler, N. Painlevé test of the McKean and Carleman models. Lett Math Phys 14, 99–104 (1987). https://doi.org/10.1007/BF00420299
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DOI: https://doi.org/10.1007/BF00420299