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A strange recursion operator demystified

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19610%2F05%3A%230000043" target="_blank" >RIV/47813059:19610/05:#0000043 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    A strange recursion operator demystified

  • Original language description

    We show that a new integrable two-component system of KdV type studied by Karasu (Kalkanl?) et al (2004 Acta Appl. Math. 83 85?94) is bi-Hamiltonian, and its recursion operator, which has a highly unusual structure of nonlocal terms, can be written as aratio of two compatible Hamiltonian operators found by us. Using this we prove that the system in question possesses an infinite hierarchy of local commuting generalized symmetries and conserved quantities in involution, and the evolution systems corresponding to these symmetries are bi-Hamiltonian as well. We also show that upon introduction of suitable nonlocal variables the nonlocal terms of the recursion operator under study can be written in the usual form, with the integration operator $D_x^{-1}$appearing in each term at most once.

  • Czech name

    Podivný operátor rekurze demystifikován

  • Czech description

    Byly nalezeny dvě kompatibilní Hamiltonovy struktury pro nový integrabilni systém typu KdV objevený Karasu (Kalkanli) aj. (2004 Acta Appl. Math.83 85?94) a nezávisle Sakovičem. Tento výsledek byl poté využit k důkazu existence nekonečného počtu lokálníchzobecněných symetrií zmíněného systému, což vzhledem k nestandardní struktuře nelokálních členů příslušného operátoru rekurze nelze udělat pomocí jiných známých metod.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BA - General mathematics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA201%2F04%2F0538" target="_blank" >GA201/04/0538: Geometry of integrable systems</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Physics A: Mathematical and General

  • ISSN

    ISSN0305-4470

  • e-ISSN

  • Volume of the periodical

    38

  • Issue of the periodical within the volume

    15

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    6

  • Pages from-to

    "L257"-"L262"

  • UT code for WoS article

  • EID of the result in the Scopus database