QUADRATIC SYSTEMS POSSESSING A WEAK FOCUS OF ORDER TWO AND A SINGULAR POINT WITH A ZERO CHARACTERISTIC ROOT

QUADRATIC SYSTEMS POSSESSING A WEAK FOCUS OF ORDER TWO AND A SINGULAR POINT WITH A ZERO CHARACTERISTIC ROOT

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摘要 It is clear that the quadratic system possessing a weak focus of order two and a singular point with a zero characteristic root can be written

作者张平光蔡燧林

机构地区 Zhejiang University

出处《Chinese Science Bulletin》 SCIE EI CAS 1990年第6期459-463,共5页

基金 Project supported by the National Natural Science Foundation of China

关键词 QUADRATIC system WEAK FOCUS LIMIT cycle. quadratic system, weak focus, limit cycle.

分类号 N [自然科学总论]

引文网络
相关文献

1张平光.STUDY OF NON-EXISTENCE OF LIMIT CYCLE AROUND A WEAK FOCUS OF ORDER TWO OR THREE FOR QUADRATIC SYSTEMS[J].Chinese Science Bulletin,1990,35(14):1156-1161.
2白敬新,刘一戎.A CLASS OF PLANAR n (EVEN NUMBER)-POLY-NOMIAL SYSTEM WITH A WEAK FOCUS OF ORDER n^2-n[J].Chinese Science Bulletin,1992,37(19):1590-1593. 被引量：1
3刘一戎.The Values of Singular Point of E_n and Some Kinds of Problems of Bifurcation[J].Science China Mathematics,1993,36(5):550-560.
4张平光.THE UNIQUENESS OF LIMIT CYCLE OF QUADRATIC SYSTEM(Ⅱ)_(m=0)[J].Chinese Science Bulletin,1990,35(5):360-365.
5赵怀忠.ON THE STRUCTURE OF THE INTEGRAL SURFACES NEAR A HIGH ORDER FOCUS AND SADDLE[J].Chinese Science Bulletin,1991,36(13):1139-1140.
6刘一戎,李继彬.THEORY OF VALUES OF SINGULAR POINT IN COMPLEX AUTONOMOUS DIFFERENTIAL SYSTEMS[J].Science China Mathematics,1990,33(1):10-23. 被引量：23
7刘一戎.FORMULAS OF VALUES OF SINGULAR POINT AND THE INTEGRABILITY CONDITIONS FOR A CLASS OF CUBIC SYSTEM, M(3)≥7[J].Chinese Science Bulletin,1990,35(15):1241-1245.
8邢朝平.QUADRATIC FUNCTION FIELDS AND CODES[J].Chinese Science Bulletin,1991,36(8):624-628.
9赵怀忠.THE COMPLEX HOPF BIFURCATION[J].Chinese Science Bulletin,1991,36(13):1135-1136.
10LIN YaNan1 & TANG LiDan1,2,1School of Mathematical Sciences, Xiamen University, Xiamen 361005, China,2College of Mathematics and Computer Science, Fuzhou University, Fuzhou 350108, China.Subcategories of fixed points of mutations in root categories with type _(n-1)[J].Science China Mathematics,2010,53(12):3057-3066.

Chinese Science Bulletin

1990年第6期

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QUADRATIC SYSTEMS POSSESSING A WEAK FOCUS OF ORDER TWO AND A SINGULAR POINT WITH A ZERO CHARACTERISTIC ROOT

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