dc.contributor.author | Damianou, Pantelis A. | en |
dc.contributor.author | Fernandes, R. L. | en |
dc.creator | Damianou, Pantelis A. | en |
dc.creator | Fernandes, R. L. | en |
dc.date.accessioned | 2019-12-02T10:34:41Z | |
dc.date.available | 2019-12-02T10:34:41Z | |
dc.date.issued | 2008 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/56704 | |
dc.description.abstract | It is well-known that the Poisson-Nijenhuis manifolds, introduced by Kosmann-Schwarzbach and Magri form the appropriate setting for studying many classical integrable hierarchies. In order to define the hierarchy, one usually specifies in addition to the Poisson-Nijenhuis manifold a bi-hamiltonian vector field. In this paper we show that to every Poisson-Nijenhuis manifold one can associate a canonical vector field (no extra choices are involved!) which under an appropriate assumption defines an integrable hierarchy of flows. This vector field is the modular class of the Poisson-Nijhenhuis manifold. This class has a canonical representative which, under a cohomological assumption, is a bi-hamiltonian vector field. In many examples the associated hierarchy of flows reproduces classical integrable hierarchies. We illustrate in detail with the Harmonic Oscillator, the Calogero-Moser system, the classical Toda lattice and various Bogoyavlensky-Toda Lattices. | en |
dc.source | Annales de l'Institut Fourier | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-42549133541&partnerID=40&md5=4dbce06bd386c987477bbc3b41947576 | |
dc.subject | Integrable hierarchies | en |
dc.subject | Modular class | en |
dc.subject | Poisson-Nijhenhuis manifolds | en |
dc.title | Integrable hierarchies and the modular class | en |
dc.type | info:eu-repo/semantics/article | |
dc.description.volume | 58 | |
dc.description.issue | 1 | |
dc.description.startingpage | 107 | |
dc.description.endingpage | 137+VIII | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :11</p> | en |
dc.source.abbreviation | Ann.Inst.Fourier | en |
dc.contributor.orcid | Damianou, Pantelis A. [0000-0003-3399-9837] | |
dc.gnosis.orcid | 0000-0003-3399-9837 | |