2013
DOI: 10.1063/1.4826601
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Non-integrability of a class of Painlevé IV equations as Hamiltonian systems

Abstract: A family of completely integrable multi-Hamiltonian systems explicitly related to some celebrated equationsIn this paper, we will prove the rational non-integrability of a class of Hamiltonian systems associated with Painlevé IV equation by using Morales-Ramis theory and Kovacic's algorithm, which, to some extent, also implies the nonintegrability of the fourth Painlevé equation itself. C 2013 AIP Publishing LLC.

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“…Roughly speaking, their results show that if Hamiltonian system with n degrees of freedom admits n meromorphic first integrals which are in involution and independent, then the identity component of the differential Galois group of the normal variational equations along a non-equilibrium solution must be commutative. Many scholars applied Morales-Ramis theory to large numbers of practical models, see for instance [8,21,26]. For general dynamical systems, the authors in [18,19] presented some results which reveal the relation between the meromorphic first integrals and the differential Galois group of normal variational equations, which will be used to prove Theorem 1.1.…”
Section: Introductionmentioning
confidence: 99%
“…Roughly speaking, their results show that if Hamiltonian system with n degrees of freedom admits n meromorphic first integrals which are in involution and independent, then the identity component of the differential Galois group of the normal variational equations along a non-equilibrium solution must be commutative. Many scholars applied Morales-Ramis theory to large numbers of practical models, see for instance [8,21,26]. For general dynamical systems, the authors in [18,19] presented some results which reveal the relation between the meromorphic first integrals and the differential Galois group of normal variational equations, which will be used to prove Theorem 1.1.…”
Section: Introductionmentioning
confidence: 99%