TY - JOUR T1 - Bifurcation in a Differential-Algebra Predator-Prey System with Time Lag Effects JO - East Asian Journal on Applied Mathematics VL - 1 SP - 122 EP - 152 PY - 2019 DA - 2019/01 SN - 9 DO - http://doi.org/10.4208/eajam.070318.070518 UR - https://global-sci.org/intro/article_detail/eajam/12938.html KW - Predator-prey, bifurcation, time lag, parametrisation, harvesting. AB -

A predator-prey system with Holling type II functional response and a time lag is described by a delayed differential-algebra system and the local asymptotic stability and Hopf bifurcation of such system is studied. It is shown that if the time lag increases, a sequence of Hopf bifurcations can occur. The stability and direction of the Hopf bifurcations are studied by using center manifold theory for functional differential equations. A numerical example illustrates our theoretical findings.