THE FORMULA OF THE GENERALIZED CENTER-FOCUS AND WEAK SADDLE

摘要：

This paper discussed a problem of center-weak focus and weak saddle of a general system of degree n. It offers: (1) Some calculating formula of the saddle values in the general homogeneous system of degree n. (2) Give Fw n(2)(s,n)│n=0 in the consequent function formula by utilizing curvilinear coordinates (3) Define two kinds of new matrix operation and apply the matrix operation method to rewrite center-focus entire sexic systems into the form of matrix, and can reduce the system by real reversible symmetry transformation.

关键词： Center Focus Saddle Curvilinear coordinates

作者: WEIMING WAN XIAOHENG CHI

作者单位: School of Science, Dalian Jiaotong University, Dalia, Liaoning, 116011, P.R.China

会议类型: 国际会议

会议名称: The Second International Conference on Information & Systems Sciences(ICISS2008)(第二届信息与系统科学国际会议)

会议地点: 大连

会议语种:英文

页码: 147-154

在线出版日期: 2008-12-18（万方平台首次上网日期，不代表论文的发表时间）