Access the full text.
Sign up today, get DeepDyve free for 14 days.
Ye Yanqian, Ye Weiyin (1985)
Cubic Kolmogorov Differential System with Two Limit Cycles Surrounding the Same FocusAnn. of Diff. Eqs., 1
Zhang Zhifen (1958)
The Uniqueness of Cycle for Nonlinear Oscillatory EquationДАН СССР, 119
Chen Lansun (1988)
Mathematical Ecologic and Method of Research
In this paper, we analyse qualitatively a cubic Kolmogorov system: $$\left\{ \begin{gathered} \frac{{dx}}{{dt}} = x[a_0 + a_1 x - a_3 x^2 - a_4 y + a_5 xy], \hfill \\ \frac{{dy}}{{dt}} = y(x - 1)(1 + by), \hfill \\ \end{gathered} \right.$$ which is one of the mathematical models in ecology describing the interaction between Predator-Prey of two populations; and give the conditions of nonexistence, existence and uniqueness of limit cycles for three different cases.
Acta Mathematicae Applicatae Sinica – Springer Journals
Published: Jul 13, 2005
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.