A note on local integrability of differential systems
A note on local integrability of differential systems
复制标题
关于微分系统局部可积性的注记
DOI:
10.1016/j.jde.2017.08.016
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发表时间:
2017-12
影响因子:
2.4
通讯作者:
Zhang Xiang
中科院分区:
文献类型:
--
作者:
Zhang Xiang
For an n-dimensional local analytic differential system x˙= A x+ f (x) with f (x)= O (| x| 2), the Poincaré nonintegrability theorem states that if the eigenvalues of A are not resonant, the system does not have an analytic or a formal first integral in a neighborhood of the origin. This result was extended in 2003 to the case when A admits one zero eigenvalue and the other are non-resonant: for n= 2 the system has an analytic first integral at the origin if and only if the origin is a non-isolated singular point; for n> 2 the system has a formal first integral at the origin if and only if the origin is not an isolated singular point. However, the question of whether the system has an analytic first integral at the origin provided that the origin is not an isolated singular point remains open.
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影响因子:
2.4
作者:
Valery G. Romanovski;Yonghui Xia;Xiang Zhang
通讯作者:
Xiang Zhang
影响因子:
2.4
作者:
Wang Cong;J. Llibre;Xiang Zhang
通讯作者:
Wang Cong;J. Llibre;Xiang Zhang
影响因子:
1
作者:
N. Zung
通讯作者:
N. Zung
DOI:
10.1007/0-387-35794-7
发表时间:
2016
期刊:
--
影响因子:
--
作者:
通讯作者:
--
DOI:
10.3406/marb.1892.2391
发表时间:
--
期刊:
Mémoires couronnés et autres mémoires publiés par l'Académie royale des sciences, des lettres et des beaux-arts de Belgique. Collection in-8°
影响因子:
--
作者:
Charles Jean de b. La Vallée Poussin
通讯作者:
Charles Jean de b. La Vallée Poussin