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A SUFFICIENT AND NECESSARY CONDITION OF THE EXISTENCE TO A DOUBLE BUN TYPE SEPARATRIX CYCLE FOR AXIAL SYMMETRY CUBIC SYSTEM |
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| Abstract: | A sufficient and necessary condition of the existence to a double bun curve solution for axial symmetry cubic system is given in this paper. The global topological structure of its trajectories in the phase space is also given. |
| Keywords: | double bun curve separatrix cycle topological structure |