Pelen, Neslihan NesliyeKoksal, Mehmet Emir2022-03-112022-03-112017-01-05Pelen, N. N., & Koksal, M. E. (2017). Necessary and sufficient conditions for the existence of periodic solutions in a predator-prey model. <i>Electronic Journal of Differential Equations, 2017</i>(03), pp. 1-12.1072-6691https://hdl.handle.net/10877/15499Liu et al [14] found necessary and sufficient conditions for the existence of periodic solutions of the predator-prey dynamical systems with semi-ratio dependent generalized functional response. In this work, we obtain a globally attractive or globally asymptotically stable periodic solution for the time scale Τ is taken as ℝ, with a small change on the condition over generalized functional response on the prey.Text12 pages1 file (.pdf)enAttribution 4.0 InternationalPredator-prey systemsSemi-ratio dependent functional responseStability analysisNecessary and sufficient conditions for the existence of periodic solutions in a predator-prey modelArticle