›› 2014, Vol. 23 ›› Issue (7): 70202-070202.doi: 10.1088/1674-1056/23/7/070202

• GENERAL • 上一篇    下一篇

Non-autonomous discrete Boussinesq equation:Solutions and consistency

农丽娟, 张大军   

  1. Department of Mathematics, Shanghai University, Shanghai 200444, China
  • 收稿日期:2013-11-27 修回日期:2014-01-05 出版日期:2014-07-15 发布日期:2014-07-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11071157 and 11371241), the Social Responsibility Foundation for the Doctoral Program of Higher Education of China (Grant No. 20113108110002), and the Project of "First-class Discipline of Universities in Shanghai" of China.

Non-autonomous discrete Boussinesq equation:Solutions and consistency

Nong Li-Juan (农丽娟), Zhang Da-Juan (张大军)   

  1. Department of Mathematics, Shanghai University, Shanghai 200444, China
  • Received:2013-11-27 Revised:2014-01-05 Online:2014-07-15 Published:2014-07-15
  • Contact: Nong Li-Juan E-mail:nonglijuan2008@163.com
  • About author:02.30.Ik; 05.45.Yv
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11071157 and 11371241), the Social Responsibility Foundation for the Doctoral Program of Higher Education of China (Grant No. 20113108110002), and the Project of "First-class Discipline of Universities in Shanghai" of China.

摘要: A non-autonomous 3-component discrete Boussinesq equation is discussed. Its spacing parameters pn and qm are related to independent variables n and m, respectively. We derive bilinear form and solutions in Casoratian form. The plain wave factor is defined through the cubic roots of unity. The plain wave factor also leads to extended non-autonomous discrete Boussinesq equation which contains a parameter δ. Tree-dimendional consistency and Lax pair of the obtained equation are discussed.

关键词: non-autonomous discrete Boussinesq equation, bilinear, solutions, Lax pair

Abstract: A non-autonomous 3-component discrete Boussinesq equation is discussed. Its spacing parameters pn and qm are related to independent variables n and m, respectively. We derive bilinear form and solutions in Casoratian form. The plain wave factor is defined through the cubic roots of unity. The plain wave factor also leads to extended non-autonomous discrete Boussinesq equation which contains a parameter δ. Tree-dimendional consistency and Lax pair of the obtained equation are discussed.

Key words: non-autonomous discrete Boussinesq equation, bilinear, solutions, Lax pair

中图分类号:  (Integrable systems)

  • 02.30.Ik
05.45.Yv (Solitons)