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Difference between revisions of "Painlevé equation"

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Revision as of 18:53, 24 March 2012

The common name for a group of six special ordinary differential equations of the type

where is a rational function in and and an analytic function in . Any such equation having only fixed singular points (cf. Movable singular point) can be reduced to one out of 50 canonical equations. These include linear equations, Riccati equations (cf. Riccati equation) and other well-known equations, as well as the six other equations known as the Painlevé equations, and having solutions in the form of transcendental Painlevé functions, which are special functions that do not reduce to other known ones. Arranged in the generally-accepted order, the Painlevé equations have the following form ( are constants):

1) ;

2) ;

3) , ;

4) ;

5) ;

6) .

These results were first obtained in researches by P. Painlevé [1], [2]. These were continued, refined and supplemented by B. Gambier [3].

References

[1] P. Painlevé, "Mémoire sur les équations différentielles dont l'intégrale générale est uniforme" Bull. Soc. Math. France , 28 (1900) pp. 201–261
[2] P. Painlevé, "Sur les équations différentielles du second ordre et d'ordre supérieure dont l'intégrale générale est uniforme" Acta Math. , 25 (1902) pp. 1–85
[3] B. Gambier, "Sur les équations différentielles du second ordre et du premier degré dont l'intégrale générale est à points critiques fixes" Acta Math. , 33 (1910) pp. 1–55
[4] V.V. Golubev, "Vorlesungen über Differentialgleichungen im Komplexen" , Deutsch. Verlag Wissenschaft. (1958) (Translated from Russian)
[5] E.L. Ince, "Ordinary differential equations" , Dover, reprint (1956)


Comments

The Painlevé equations and the Painlevé property (absence of movable singular points) play an important role in the theory of completely-integrable systems (cf. Soliton). Indeed, the Painlevé property has been proposed as a test for complete integrability. For a survey of the current status of these ideas cf. [a3].

References

[a1] M.J. Ablowitz, H. Segur, "Solitons and the inverse scattering transform" , SIAM (1981)
[a2] R.K. Dodd, J.C. Eilbeck, J.D. Gibbon, H.C. Morris, "Solitons and nonlinear wave equations" , Acad. Press (1982)
[a3] H. Yoshida, B. Grammaticos, A. Ramani, "Painlevé resonances versus Kowalevski exponents: some exact results on singularity structure and integrability of dynamical systems" Acta Appl. Math. , 8 (1987) pp. 75–104
[a4] R. Gérard (ed.) G. Reeb (ed.) A. Sec (ed.) , Oeuvres de P. Painlevé , CNRS (1972–1975)
[a5] E. Hille, "Lectures on ordinary differential equations" , Addison-Wesley (1969)
How to Cite This Entry:
Painlevé equation. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Painlev%C3%A9_equation&oldid=17908
This article was adapted from an original article by N.Kh. Rozov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article