报告题目：Extinction behaviour for the positive mutually interacting continuous-state population dynamics.

报告摘要：In this talk we consider a system of stochastic differential equations (SDEs) with two-way positive interaction driven by Brownian motions and spectrally positive a-stable random measures. Such SDEs system can be identified as a Lotka-Volterra type population model with positive interaction. We find some close to sharp conditions for the extinction behaviour. This talk is based on a recent joint works with Jie Xiong and Xiaowen Zhou.

报告人姓名：杨叙

报告人所在单位：北方民族大学

报告人职称：教授

报告时间：2025年6月14日（星期六）下午18:00-19:00

报告地点：理科楼A212

报告人简介：杨叙，北方民族大学教授，博士生导师。2013年6月博士毕业于北京师范大学，主要从事分枝过程、随机微分方程和随机偏微分方程方面的研究工作，在《Annals of Applied Probability》、《Stochastic Processes and their Applications》、《Bernoulli》和《Journal of Differential Equations》等期刊上发表过多篇学术论文。