planar ODE;
periodic coefficients;
periodic solutions;
averaging;
a priori estimate;
D O I:
10.1016/S0362-546X(99)00191-1
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
A nonautonomous system of ordinary differential equations was studied. The multiplicity problems based on theorems on the multiplicity of distinct roots of a complex polynomial was studied by using Nielson theory. The main theorem gives a sufficient condition for the existence of periodic solutions for a particular equation by direct integration.
机构:
Univ Turin, Dipartimento Matemat Giuseppe Peano, Via Carlo Alberto 10, I-10123 Turin, ItalyUniv Turin, Dipartimento Matemat Giuseppe Peano, Via Carlo Alberto 10, I-10123 Turin, Italy
Boscaggin, Alberto
Dambrosio, Walter
论文数: 0引用数: 0
h-index: 0
机构:
Univ Turin, Dipartimento Matemat Giuseppe Peano, Via Carlo Alberto 10, I-10123 Turin, ItalyUniv Turin, Dipartimento Matemat Giuseppe Peano, Via Carlo Alberto 10, I-10123 Turin, Italy
Dambrosio, Walter
Papini, Duccio
论文数: 0引用数: 0
h-index: 0
机构:
Univ Udine, Dipartimento Sci Matemat Informat & Fis, Via Sci 206, I-33100 Udine, ItalyUniv Turin, Dipartimento Matemat Giuseppe Peano, Via Carlo Alberto 10, I-10123 Turin, Italy
机构:
Chongqing Technol & Business Univ, Sch Math & Stat, Chongqing 400067, Peoples R ChinaChongqing Technol & Business Univ, Sch Math & Stat, Chongqing 400067, Peoples R China
Li, Lin
Tersian, Stepan
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ruse, Dept Math, Ruse 7017, Bulgaria
Bulgarian Acad Sci, Associate Inst Math & Informat, BU-1113 Sofia, BulgariaChongqing Technol & Business Univ, Sch Math & Stat, Chongqing 400067, Peoples R China
Tersian, Stepan
DIFFERENTIAL AND DIFFERENCE EQUATIONS WITH APPLICATIONS,
2018,
230
: 495
-
507
机构:
Southwest Univ, Sch Math & Stat, Chongqing 400715, Peoples R China
Chongqing Normal Univ, Coll Math Sci, Chongqing 401331, Peoples R ChinaSouthwest Univ, Sch Math & Stat, Chongqing 400715, Peoples R China
Ye, Yiwei
Tang, Chun-Lei
论文数: 0引用数: 0
h-index: 0
机构:
Southwest Univ, Sch Math & Stat, Chongqing 400715, Peoples R ChinaSouthwest Univ, Sch Math & Stat, Chongqing 400715, Peoples R China