报告题目:Stochastic analysis of cholera model with Lévy jumps
报 告 人:杨炜明教授(重庆工商大学)
报告时间:2025年10月26日(星期日)10:30-11:10
报告地点:数学大楼报告厅三(814)
参加人员:教师、研究生、本科生
报告摘要:In this talk, we propose a stochastic cholera model that incorporates media coverage and two time delays driven by Lévy noise in order to deeply understand the propagation process of cholera in the real world, generalized nonlinear incidence rates f(S) and g(I) are also introduced. Firstly, we discuss the existence and uniqueness of the global positive solution of the stochastic model by using the Lyapunov method. Moreover, the dynamic properties of stochastic solution around the disease-free and endemic equilibria are demonstrated. At last, we present numerical simulation results to reveal how Lévy jumps, time delays and media coverage affect the asymptotic properties of the stochastic model.
报告人简介:杨炜明,男,博士,教授,博士生导师,重庆市“巴渝学者∙青年学者”,现任437必赢会员中心副院长、统计智能计算与监测重庆市重点实验室主任、经济统计国家级一流专业负责人。兼任全国统计学会理事、重庆市统计学会副会长、重庆市普通本科高等学校数理类专业教学指导委员会委员、全国商业统计学会理事。目前主要从事经济统计分析、函数型数据建模、随机微分方程、大数据建模及应用等方面的研究工作。在国内外期刊上发表学术论文20多篇,已主持国家社会科学基金项目2项,国家自然科学基金项目1项,省部级课题4项,政府和企事业咨政课题10多项。