报告主题：Noise-induced phenomena in two types of stochastic population models

报告人：许超群 副教授

报告时间：2024年11月9日（周六）下午14:00—16:00

报告地点：腾讯会议 265 273 371

报告摘要：Two stochastic population models will be introduced. For a stochastic single-species population model with Allee effect, we derive the corresponding Fokker-Planck equation and obtained the SPD. By analyzing the shape of SPD under different parameter conditions, we find that the P-bifurcation may occur in the stochastic model. For a predator-prey model of Leslie type with generalized Holling type III functional response, the phenomenon of noise-induced oscillatory transitions is studied. To reveal the probabilistic mechanisms of the noise-induced transitions, we construct the confidence domains of stochastic attractors by applying the technique of stochastic sensitivity functions.

报告人简介：许超群，江苏大学数学科学学院副教授、硕士生导师。主要研究方向为随机生物数学模型的渐近性质。已经在Chaos、Mathematical Biosciences、Bulletin of Mathematical Biology等期刊上发表SCI论文20余篇，主持完成国家自然科学基金项目和江苏省自然科学基金项目各一项。

（邀请人：裴鑫）