Home > Articles > Published articles > Generalized rational first integrals of analytic differential systems |
Date: | 2011 |
Abstract: | In this paper we mainly study the necessary conditions for the existence of functionally independent generalized rational first integrals of ordinary differential systems via the resonances. The main results extend some of the previous related ones, for instance the classical Poincaré's one [16], the Furta's one [8], part of Chen et al's ones [4], and the Shi's one [18]. The key point in the proof of our main results is that functionally independence of generalized rational functions implies the functionally independence of their lowest order rational homogeneous terms. |
Grants: | Ministerio de Economía y Competitividad MTM2008-03437 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-410 |
Note: | Agraïments: The third author is partially supported by NNSF of China grant 10831003 and Shanghai Pujiang Programm 09PJD013. |
Rights: | Tots els drets reservats. |
Language: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Subject: | Differential systems ; Generalized rational first integrals ; Resonance |
Published in: | Journal of differential equations, Vol. 251 (2011) , p. 2770-2788, ISSN 1090-2732 |
Postprint 22 p, 716.4 KB |