Damghan University Press Analytical and Numerical Solutions for Nonlinear Equations 3060-785X 1 1 2016 08 01 Prey-Predator System; Having Stable Periodic Orbit عنوان 21 27 45 10.22128/gadm.2016.45 EN M.H. Rahmani Doust Department of Mathematics, University of Neyshabur, Neyshabur, Iran. S. Gholizade Department of Mathematics, University of Ilam, Ilam, Iran. Journal Article 2015 03 05 The study of differential equations is useful in to analyze the possible past or future with help of present information. In this paper, the behavior of solutions has been analyzed around the equilibrium points for Gause model. Finally, some results are worked out to exist the stable periodic orbit for mentioned predator-prey system. https://ansne.du.ac.ir/article_45_ec50b597fda43713ffdc5282a82d46eb.pdf