limit cycles in a cubic kolmogorov system with harvest and two positive equilibrium points
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2014
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Abstract
A class of planar cubic Kolmogorov systems with harvest and two positive equilibrium points is investigated. With the help of computer algebra system MATHEMATICA, we prove that five limit cycles can be bifurcated simultaneously from the two critical points (1, 1) and (2, 2), respectively, in the first quadrant. Moreover, the necessary conditions of centers are obtained.
| Reference Key |
zhang2014abstractlimit
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|---|---|
| Authors | ;Qi-Ming Zhang;Feng Li;Yulin Zhao |
| Journal | science and technology of advanced materials |
| Year | 2014 |
| DOI |
10.1155/2014/786962
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| URL | |
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