China
China
China
For the three-dimensional type-K competitive Lotka-Volterra system with the identical intrinsic growth rate, we completely characterize its global dynamics in the Poincaré compactification of the system in the positive octant of R3. Precisely, with the help of the replicator equations it is proved that this kind of system can have exactly 44 topologically different phase portraits. As a consequence, we obtain the necessary and sufficient conditions for the system to be bounded in the positive octant and verify that the α and ω limit sets of any orbit of the compactified vector field associated to the system are both equilibria.
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