Singularity analysis towards nonintegrability of nonhomogeneous nonlinear lattices
Ken Umeno
solv-intarXiv:solv-int/9704009
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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