The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase Spaces

The Hamiltonian representation for the hierarchy of Lax-type flows on a dual space to the Lie algebra of shift operators coupled with suitable eigenfunctions and adjoint eigenfunctions evolutions of associated spectral problems is found by means of a specially constructed Bäcklund transformation. Th...

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Main Author: Oksana Ye. Hentosh
Format: Article
Language:English
Published: National Academy of Science of Ukraine 2010-04-01
Series:Symmetry, Integrability and Geometry: Methods and Applications
Subjects:
Online Access:http://dx.doi.org/10.3842/SIGMA.2010.034
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author Oksana Ye. Hentosh
author_facet Oksana Ye. Hentosh
author_sort Oksana Ye. Hentosh
collection DOAJ
description The Hamiltonian representation for the hierarchy of Lax-type flows on a dual space to the Lie algebra of shift operators coupled with suitable eigenfunctions and adjoint eigenfunctions evolutions of associated spectral problems is found by means of a specially constructed Bäcklund transformation. The Hamiltonian description for the corresponding set of squared eigenfunction symmetry hierarchies is represented. The relation of these hierarchies with Lax integrable (2+1)-dimensional differential-difference systems and their triple Lax-type linearizations is analysed. The existence problem of a Hamiltonian representation for the coupled Lax-type hierarchy on a dual space to the central extension of the shift operator Lie algebra is solved also.
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spelling doaj.art-aa79cf5877a3428eb33b3a343a1f40712022-12-22T00:41:18ZengNational Academy of Science of UkraineSymmetry, Integrability and Geometry: Methods and Applications1815-06592010-04-016034The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase SpacesOksana Ye. HentoshThe Hamiltonian representation for the hierarchy of Lax-type flows on a dual space to the Lie algebra of shift operators coupled with suitable eigenfunctions and adjoint eigenfunctions evolutions of associated spectral problems is found by means of a specially constructed Bäcklund transformation. The Hamiltonian description for the corresponding set of squared eigenfunction symmetry hierarchies is represented. The relation of these hierarchies with Lax integrable (2+1)-dimensional differential-difference systems and their triple Lax-type linearizations is analysed. The existence problem of a Hamiltonian representation for the coupled Lax-type hierarchy on a dual space to the central extension of the shift operator Lie algebra is solved also.http://dx.doi.org/10.3842/SIGMA.2010.034Lax integrable differential-difference systemsBäcklund transformationsquared eigenfunction symmetries
spellingShingle Oksana Ye. Hentosh
The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase Spaces
Symmetry, Integrability and Geometry: Methods and Applications
Lax integrable differential-difference systems
Bäcklund transformation
squared eigenfunction symmetries
title The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase Spaces
title_full The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase Spaces
title_fullStr The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase Spaces
title_full_unstemmed The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase Spaces
title_short The Lax Integrable Differential-Difference Dynamical Systems on Extended Phase Spaces
title_sort lax integrable differential difference dynamical systems on extended phase spaces
topic Lax integrable differential-difference systems
Bäcklund transformation
squared eigenfunction symmetries
url http://dx.doi.org/10.3842/SIGMA.2010.034
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