CONCRETE EXAMPLES OF EXISTENCE OF THREE LIMIT CYCLES FOR THE SYSTEM dx/dt=X_2(x,y),dy/dt=Y_2(x,y)

CONCRETE EXAMPLES OF EXISTENCE OF THREE LIMIT CYCLES FOR THE SYSTEM dx/dt=X_2(x,y),dy/dt=Y_2(x,y)

Acta Mathematica Sinica, Chinese Series ›› 1959, Vol. 9 ›› Issue (2) : 213-226.

中国科学院数学与系统科学研究院期刊网

Acta Mathematica Sinica, Chinese Series ›› 1959, Vol. 9 ›› Issue (2) : 213-226. DOI: 10.12386/A1959sxxb0022

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CONCRETE EXAMPLES OF EXISTENCE OF THREE LIMIT CYCLES FOR THE SYSTEM dx/dt=X_2(x,y),dy/dt=Y_2(x,y)

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{{article.zuoZheEn_L}}. {{article.title_en}}. Acta Mathematica Sinica, Chinese Series, 1959, 9(2): 213-226 https://doi.org/10.12386/A1959sxxb0022

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