Articles

AN ABLOWITZ-LADIK INTEGRABLE LATTICE HIERARCHY WITH MULTIPLE POTENTIALS

  • Wen-Xiu MA
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  • 1 School of Mathematics, South China University of Technology, Guangzhou 510640, China;
    2 Department of Mathematics, King Abdulaziz University, Jeddah, Saudi Arabia;
    3 Department of Mathematics and Statistics, University of South Florida, Tampa, FL 33620, USA;
    4 Department of Mathematics, Zhejiang Normal University, Jinhua 321004, China;
    5 College of Mathematics and Systems Science, Shandong University of Science and Technology, Qingdao 266590, China;
    6 Department of Mathematical Sciences, North-West University, Mafikeng Campus, Mmabatho 2735, South Africa

Received date: 2018-11-11

  Online published: 2020-07-17

Supported by

The work was supported in part by NSF (DMS-1664561), NSFC (11975145 and 11972291), the Natural Science Foundation for Colleges and Universities in Jiangsu Province (17KJB110020), and Emphasis Foundation of Special Science Research on Subject Frontiers of CUMT (2017XKZD11).

Abstract

Within the zero curvature formulation, a hierarchy of integrable lattice equations is constructed from an arbitrary-order matrix discrete spectral problem of Ablowitz-Ladik type. The existence of infinitely many symmetries and conserved functionals is a consequence of the Lax operator algebra and the trace identity. When the involved two potential vectors are scalar, all the resulting integrable lattice equations are reduced to the standard Ablowitz-Ladik hierarchy.

Cite this article

Wen-Xiu MA . AN ABLOWITZ-LADIK INTEGRABLE LATTICE HIERARCHY WITH MULTIPLE POTENTIALS[J]. Acta mathematica scientia, Series B, 2020 , 40(3) : 670 -678 . DOI: 10.1007/s10473-020-0306-3

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