共 50 条
- [42] How to estimate the number of limit cycles in Lienard systems with a small parameter Differential Equations, 2011, 47 : 224 - 230
- [45] ON THE NUMBER OF LIMIT CYCLES OF A QUARTIC POLYNOMIAL SYSTEM DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES S, 2021, 14 (09): : 3167 - 3181
- [46] An Estimate of the Number of Limit Cycles via Critical Points of Conditional Extremum Differential Equations, 2003, 39 : 1404 - 1413
- [47] On the number and distribution of limit cycles in a cubic system INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, 2004, 14 (12): : 4285 - 4292