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您的检索式：作者名="Joydev Chattopadhyay"
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| 1 | 一类食饵种群中具有传染病的捕食-被捕食系统(英文)显示文摘对疾病仅在食饵种群传播的有比例依赖的捕食-被捕食系统的动力学进行了分析,给出了每个平衡点附近系统的性态,定义了决定疾病灭绝和成为地方病的阁值R_0.得出的结论是:在比例依赖的捕食-被捕食系统中,染病食饵种群可以充当一个生物控制量,以抑制种群的绝灭. | Mainul Haque Joydev Chattopadhyay | 2007 | 生物数学学报2007，22，1： | 4 |
| 2 | Study of a crop-pest-natural enemy model with Z-type control——An approach to pest management显示文摘In this study,the Z-type control method is applied to an intraguild crop-pest-natural enemy model,assuming that the natural enemy can predate on both crop and pest populations.For this purpose,the indirect Z-type controller is considered in the natural enemy population.After providing the design function for the crop-pest-natural enemy model with Z-control,we find the analytical expression of the update parameter.The findings indicate that the uncontrolled system can produce chaos through perioddoubling bifurcation due to crop over-consumption by the pest population.We draw a Poincare map to confirm the occurrence of chaos and compute the maximum Lyapunov exponent.As the observations further indicate that the pest population can be controlled by using an indirect Z-control mechanism in the natural enemy population,we postulate that,if natural enemy abundance can be governed by the update parameter,any desired pest population abundance can be achieved through the proposed Z-type controller,thus controlling the pest.To verify these assertions,extensive numerical simulations are performed to explore the potential for practical application of the proposed Z-type controller. | Dibyendu Sekhar Mandal Sudip Samanta Rana D.Parshad Abdennasser Chekroun Mohamed Helal Joydev Chattopadhyay | 2023 | International Journal of Biomathematics2023，16，4： | 0 |
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