中国物理B ›› 2007, Vol. 16 ›› Issue (12): 3581-3588.doi: 10.1088/1009-1963/16/12/005

• • 上一篇    下一篇

New algorithms for constrained dynamics based on Faddeev--Jackiw approach

许志强1, 贾屹峰2, 吴 可2   

  1. (1)Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100080, China; (2)School of Mathematical Sciences, Capital Normal University, Beijing 100037, China
  • 出版日期:2007-12-20 发布日期:2007-12-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10401021).

New algorithms for constrained dynamics based on Faddeev--Jackiw approach

Jia Yi-Feng(贾屹峰)a), Wu Ke(吴可)a), and Xu Zhi-Qiang(许志强)b)   

  1. a School of Mathematical Sciences, Capital Normal University, Beijing 100037, China; b Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100080, China
  • Online:2007-12-20 Published:2007-12-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10401021).

摘要: In this paper, the Faddeev--Jackiw approach is improved by the Wu elimination method, so a great many complicated computations in solving constraints for the finite-dimensional polynomial-type constrained dynamics can be executed easily by using computers. Moreover, based on the Faddeev--Jackiw approach, a new algorithm of solving the constrained dynamics is presented. The new algorithm is simpler and stricter than the Faddeev--Jackiw approach. Using the new algorithm, the second Cawley counterexample is solved.

关键词: constrained, characteristic chain, symplectic matrix

Abstract: In this paper, the Faddeev--Jackiw approach is improved by the Wu elimination method, so a great many complicated computations in solving constraints for the finite-dimensional polynomial-type constrained dynamics can be executed easily by using computers. Moreover, based on the Faddeev--Jackiw approach, a new algorithm of solving the constrained dynamics is presented. The new algorithm is simpler and stricter than the Faddeev--Jackiw approach. Using the new algorithm, the second Cawley counterexample is solved.

Key words: constrained, characteristic chain, symplectic matrix

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a