GUO Keke, ZHANG Qi. Generalized center problem and integrability of complex polynomial differential system[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2018,57(3):54-59.
GUO Keke, ZHANG Qi. Generalized center problem and integrability of complex polynomial differential system[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2018,57(3):54-59.DOI:
The generalized center problem of elementary resonant singular point for an extensive class of complex autonomous polynomial differential system in C
2
is studied. A new method (integrating factor method) is introduced to determine generalized center of resonant singular point for any rational resonance ratio. A recursion formula of calculating saddle point quantities is obtained and the relation of the saddle point quantity and the generalized singular point quantity is given. A gap in Doctoral thesis of Ping Xiao is fixed.
关键词
共振奇点广义中心积分因子广义奇点量
Keywords
resonant singular pointgeneralized centerintegrating factorgeneralized singular point quantity