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Singularity analysis towards nonintegrability of nonhomogeneous nonlinear lattices

Ken Umeno
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Abstract

We show non-integrability of the nonlinear lattice of Fermi-Pasta-Ulam type via the singularity analysis(Picard-Vessiot theory) of normal variational equations of Lamé type.

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Ken Umeno. 1997-04-16. Singularity analysis towards nonintegrability of nonhomogeneous nonlinear lattices. https://arxiv.org/abs/solv-int/9704009

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