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On integrable perturbations of harmonic oscillator
Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
Linköping University, Department of Mathematics, Applied Mathematics. Linköping University, The Institute of Technology.
2001 (English)In: Reports on mathematical physics, ISSN 0034-4877, E-ISSN 1879-0674, ISSN 0034-4877, Vol. 48, 139-147 p.Article in journal (Refereed) Published
Abstract [en]

Integrable perturbations of the two-dimensional harmonic oscillator are studied with the use of the recently developed theory of quasi-Lagrangian equations. For the case of nonequal frequencies all quadratic perturbations admitting two integrals of motion which are quadratic in velocities are found. A non-potential generalization of the KdV integrable case of the Hénon—Heiles system is obtained.

Place, publisher, year, edition, pages
2001. Vol. 48, 139-147 p.
Keyword [en]
integrable perturbations; bi-Hamiltonian systems; quasi-Lagrangian equations; Hénon—Heiles system
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URN: urn:nbn:se:liu:diva-50979DOI: 10.1016/S0034-4877(01)80073-2OAI: diva2:272451
Available from: 2009-10-15 Created: 2009-10-15 Last updated: 2012-12-20

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Marciniak, KrzysztofRauch-Wojciechowski, Stefan
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