搜索结果: 1-1 共查到“化学 problem”相关记录1条 . 查询时间(0.14 秒)
THE CENTER PROBLEM FOR A LINEAR CENTER PERTURBED BY HOMOGENEOUS POLYNOMIALS
Center problem Nonlinear differential equations
2007/12/11
The centers of the polynomial differential systems with a linear center perturbed by homogeneous polynomials have been studied for the degrees $s=2,3,4,5$. They are completely classified for $s=2,3$, ...