Summary
A hierarchy of nonlinear evolution equations associated with a generalization of the Schrödinger spectral problem is derived. It is shown that each equation is Hamiltonian and that their flows commute. The spectral equation is examined and certain difficulties in the inverse problem are pointed out.
Riassunto
Si ricava una gerarchia di equazioni di evoluzione non lineari associate a una generalizzazione del problema spettrale di Schrödinger. Si mostra che tutte le equazioni sono hamiltoniane e che i loro flussi commutano. Si esamina il problema spettrale e si evidenziano alcune difficoltà nella risoluzione del problema inverso.
Резуме
Выводится иерархия нелинейных уравнений эволюции, связанных с обобщением спектральной пооблемы Шредингера. Показывается, что каждое уравнение представляет Гамильтониан и что их потоки коммутируют. Исследуется спектральное уранение и отмечаются некоторые трудности, связанные с решением обратной проблемы.
Similar content being viewed by others
References
C. S. Gardner, J. M. Greene, M. D. Kruskal andR. M. Miura:Phys. Rev. Lett.,19, 1095 (1967).
H. D. Wahlquist andF. B. Estabrook:J. Math. Phys.,16, 1 (1975).
M. J. Ablowitz, D. J. Kaup, A. C. Newell andH. Segur:Stud. Appl. Math.,53, 249 (1974).
A. C. Newell:Solitons, Topics in Current Physics, edited byR. K. Bullough andP. J. Caudrey, n. 17 (Springer-Verlag, Berlin, 1980), p. 177.
M. Boiti, C. Laddomada, F. Pempinelli andG. Z. Tu:J. Math. Phys.,24, 2035 (1983).
L. Martinez Alonso:J. Math. Phys.,21, 2342 (1980).
A. S. Fokas andB. Fuchssteiner:Physica D,4, 47 (1981).
R. L. Anderson andA. S. Fokas:J. Math. Phys.,23, 1066 (1982).
M. Boiti, F. Pempinelli andG. Z. Tu:Nuovo Cimento B,79, 231 (1984).
F. Magri:A geometrical approach to the nonlinear solvable equations, inLect. Notes Phys.,120, edited byM. Boiti,F. Pempinelli andG. Soliani (Springer-Verlag, Berlin, 1980).
P. J. Caudrey:Physica D,6, 51 (1982).
N. I. Muskhelishvili:Singular Integral Equations (Noordoff, Groningen, Holland, 1953).
M. Jaulent: Ph.D. Thesis, Université des Sciences et Techniques du Languedoc, (Montpellier, France, 1982).
M. Jaulent andC. Jean:Lett. Math. Phys.,5, 183 (1981).
M. Jaulent andC. Jean:J. Math. Phys.,23, 258 (1982).
Author information
Authors and Affiliations
Additional information
Work supported in part by M.P.I. and I.N.F.N., Sezione di Bari, Italy.
Перевебено ребакцией.
Rights and permissions
About this article
Cite this article
Boiti, M., Caudrey, P.J. & Pempinelli, F. A hierarchy of Hamiltonian evolution equations associated with a generalized Schrödinger spectral problem. Nuov Cim B 83, 71–87 (1984). https://doi.org/10.1007/BF02723765
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02723765