International Journal of Mathematics and Mathematical Sciences
Volume 29 (2002), Issue 11, Pages 625-632
doi:10.1155/S0161171202012802
Center conditions for a simple class of quintic systems
Evgenii P. Volokitin
Sobolev Institute of Mathematics, Novosibirsk 630090, Russia
Abstract
We obtained center conditions for an O-symmetric system of degree 5 for which the origin is a uniformly isochronous singular point.