relatively prime functions [数] 互素函数
relatively prime numbers 互质数 ; [数] 互素数
Relatively prime sequence 互素序列
relatively prime polynomial matrix [数] 互素多项式矩阵
relatively prime integers [数] 互素整数
relatively prime polynomial [数] 互素多项式
And we obtain there are only four behaviours of the trajectories near the equator of the bounded cubic system if the homogeneous polynomials of degree 3 are relatively prime. In the third chapter,we study the existence and nonexistence of limit cycle for a class of bounded cubic systems.
第一章为引言；第二章，我们得到了齐三次项互素时三次Kolmogorov型系统有界的充分必要条件及其在赤道上孤立奇点附近轨线的分布情况有且仅有四种；第三章，我们研究了一类有界三次Kolmogorov型系统极限环的存在性与不存在性。
参考来源 - 一类三次Kolmogorov型系统的有界性及极限环·2,447,543篇论文数据，部分数据来源于NoteExpress
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