Abstract
We derive a counterpart hierarchy of the Dirac soliton hierarchy from zero curvature equations associated with a matrix spectral problem from so (3, ℝ). Inspired by a special class of non-semisimple loop algebras, we construct a hierarchy of bi-integrable couplings for the counterpart soliton hierarchy. By applying the variational identities which cope with the enlarged Lax pairs, we generate the corresponding Hamiltonian structure for the hierarchy of the resulting bi-integrable couplings. To show Liouville integrability, infinitely many commuting symmetries and conserved densities are presented for the counterpart soliton hierarchy and its hierarchy of bi-integrable couplings.
Similar content being viewed by others
References
Ma, W.X., Fuchssteiner, B.: Integrable theory of the perturbation equations. Chaos Soliton Fract. 7(8), 1227–1250 (1996)
Fuchssteiner, B.: Coupling of completely integrable system: the perturbation bundle. In: Clarkson, P.A. (ed.) Applications of Analytic and Geometric Methods to Nonlinear Differential Equations, Vol. 413, pp 125–138. Springer, Netherlands (1993)
Ma, W.X.: Variational identities and applications to Hamiltonian structures of soliton equations. Nonlinear Anal. 71(12), 1716–1726 (2009)
Ma, W.X.: Integrable couplings and matrix loop algebras. In: Ma, W.X., Kaup, D. (eds.) Proceedings of the 2nd International Workshop of Nonlinear and Modern Mathematial Physics, Vol. 1562, pp 105–122 (2013)
Ma, W.X., Strampp, W.: Bilnear forms and Bäcklund transformations of the perturbation systems. Phys. Lett. A 341(5-6), 441–449 (2005)
Ma, W.X., Fuchssteiner B.: The bi-Hamiltonian structure of the perturbation equations of the KdV hierarchy. J. Phys. A 213(1-2), 49–55 (1996)
Frappat, L., Sciarrino, A., Sorba, P.: Dictionary on Lie Algebras and Superalgebras. Academic, San Diego, CA (2000)
Ma, W.X., Xu, X.X., Zhang, Y.F.: Semi-direct sums of Lie algebras and continuous integrable couplings. Phys. Lett. A 351(3), 125–130 (2006)
Ma, W.X., Xu, X.X., Zhang, Y.F.: Semi-direct sums of Lie algebras and discrete integrable couplings. J. Math. Phys. 47(5), 053501 (2006)
Ma, W.X., Meng, J.H., Zhang, H.Q.: Integrable couplings, variational identities and Hamiltonian formulations. Global J. Math. Sci. 01, 1–17 (2012)
Ma, W.X., Chen, M.: Hamiltonian and quasi-Hamiltonian structures associated with semi-direct sums of Lie algebras. J. Phys. A: Math. Gen. 39, 10787–10801 (2006)
Ablowitz, M.J., Clarkson, P.A.: Solitons, Nonlinear Evolution Equations and Inverse Scattering, London Mathematical Society Lecture Note Series. Cambridge Univ. Press, Cambridge (1991)
Ma, W.X.: Loop algebras and bi-integrable couplings. Chine. Ann. Math. B 33(2) (2012)
Ma, W.X., Zhang, H.Q., Meng, J.H.: A block mattrix loop algebra and bi-intergrable couplings of the Dirac equations. East Asian J. Appl. Math. 3(3), 171–189 (2013)
Grosse, H.: New solitons connected to the Dirac equation. Phys. Rep. 134(5-6), 297–304 (1986)
Hinton, D.B., Jordan, A.K., Klaus, M., Shaw, J.K.: Inverse scattering on the line for a Dirac system. J. Math. Phys. 32, 3015–3030 (1991)
Ma, W.X., Li, K.S.: Virasoro symmetry algebra of Dirac soliton hierarchy. Inverse Probl. 12, 12–25 (1996)
Ma, W.X.: Binary nonlinearization for the Dirac systems. Chin. Ann. Math. Ser. B 01, 79–88 (1997)
Olver, P.J.: Applications of Lie Groups to Differential Equations (1986)
Acknowledgments
The work was supported in part by NSF under the grant DMS-1301675, NSFC under the grants 11371241, 11371326, 11271008 and 61072147), Zhejiang Innovation Project of China (Grant no. T200905), and the First-class Discipline of Universities in Shanghai and the Shanghai Univ. Leading Academic Discipline Project (No. A.13-0101-12-004). This paper was also supported by the China Scholarship Council (File No. 201306890028). The authors are also grateful to D. J. Zhang for reading the paper, Y.Q.Yao, E. A. Appiah, C. X. Li, S. Manukure, M. Mcanally, S. F. Shen and S. M. Yu for their stimulating discussions.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhang, WY., Ma, WX. An so (3, ℝ) Counterpart of the Dirac Soliton Hierarchy and its Bi-Integrable Couplings. Int J Theor Phys 53, 4211–4222 (2014). https://doi.org/10.1007/s10773-014-2172-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10773-014-2172-z