CAJ | 학술논문

根据四次函数实根的判别方法，得到麦蚜生态系统燕尾突变模型平衡点个数的变化情况以及模型分歧点集的表达式，并划分麦蚜生态系统的突变区域，分析了燕尾突变的突变特征，为进一步揭示麦蚜生态系统的突变现象提供基础。
근거사차함수실근적판별방법，득도맥아생태계통연미돌변모형평형점개수적변화정황이급모형분기점집적표체식，병화분맥아생태계통적돌변구역，분석료연미돌변적돌변특정，위진일보게시맥아생태계통적돌변현상제공기출。
Using the criterion of roots of quartic functions,the numbers of equilibrium points and the bifurca-tion set of the swallowtail catastrophe model for the wheat aphids ecosystem are given. Then,the correspond-ing catastrophe regions are divided and mutation characteristics of swallowtail catastrophe are analyzed. It may provide the basis for further analysis of the catastrophe phenomena of the aphids ecosystem.