共 50 条
- [41] A Criterion for the Existence of Several Limit Cycles of the Abel Equation of the Second Kind Differential Equations, 2003, 39 : 1113 - 1116
- [42] On A Certain Class of Kolmogorov Systems: Integrability And Non-Existence Of Limit Cycles APPLIED MATHEMATICS E-NOTES, 2021, 21 : 157 - 162
- [44] THEOREM OF EXISTENCE OF EXACT N-LIMIT CYCLES FOR LIENARD EQUATION SCIENTIA SINICA SERIES A-MATHEMATICAL PHYSICAL ASTRONOMICAL & TECHNICAL SCIENCES, 1983, 26 (05): : 449 - 459
- [46] A TEST FOR THE EXISTENCE OF CERTAIN CLASSES OF SOLUTIONS OF A NONLINEAR DIFFERENTIAL EQUATION AND SOME ESTIMATES IN THE SMALL PARAMETER METHOD DOKLADY AKADEMII NAUK SSSR, 1958, 118 (06): : 1063 - 1065
- [47] EXISTENCE OF PERIODIC-SOLUTIONS FOR A CERTAIN NONLINEAR 3RD ORDER DIFFERENTIAL-EQUATION ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK, 1977, 57 (05): : T241 - T243
- [49] ALGEBRAIC LIMIT-CYCLES OF A DIFFERENTIAL-EQUATION SYSTEM DOKLADY AKADEMII NAUK BELARUSI, 1983, 27 (10): : 883 - 884