DETERMINATION OF THE SIGN OF DIVERGENCE OF A QUADRATIC SYSTEM AT CRITICAL POINTS

中国科学院数学与系统科学研究院期刊网

DETERMINATION OF THE SIGN OF DIVERGENCE OF A QUADRATIC SYSTEM AT CRITICAL POINTS

ZHANG Xiang

DETERMINATION OF THE SIGN OF DIVERGENCE OF A QUADRATIC SYSTEM AT CRITICAL POINTS

ZHANG Xiang

Journal of Systems Science and Complexity . 1997, (4): 344 -355 .