福建师范大学115周年校庆系列学术报告 ——四川师范大学朱世辉教授学术报告

发布者:韩伟发布时间:2022-10-31浏览次数:290

报告题目:Orbital Stability of Standing Waves for the BNLS with mixed dispersion

时       间:2022115日(星期六)下午430

地       点:腾讯ID: 175849255 

主       办:数学与统计学院、福建省分析数学及应用重点实验室、福建省应用数学中心(福建师范大学)、 福建师范大学数学研究中心

参加对象:感兴趣的老师和学生 


报告摘要:In this paper, we study the standing wave solutions for the bi-harmonic nonlinear Schrodinger equation with a Laplacian term (BNLS), modelling the propagation of intense laser beams in a bulk medium with Kerr nonlinearity. We first study the stability of standing waves for (BNLS) with the negative coefficient of second-order dispersion term, and find a lower bound of the coefficient ensuring the existence of orbitally stable standing waves. This shows that the sign of the second-order dispersion has crucial effect on the existence of orbitally stable standing waves for the BNLS with mixed dispersions.This work joint with Tingjian Luo(Guangzhou University), and Shijun Zheng(Georgia Southern University).


报告人简介:朱世辉,四川师范大学数学科学学院教授,博士生导师,四川省学术和技术带头人后备人选。已主持国家自然科学基金项目3项,教育部博士点基金项目(新教师),四川省杰出青年基金。主要从事非线性Schrodinger方程爆破解动力学性质研究,已在《J. Differential Equations》、《J. Mathematical Physics》、《J. Dynamics and Differential Equations》、《Dynamics of PDE》、《Nonlinear Differential Equations and Applications》、《中国科学》等国内外专业学术刊物上发表论文20余篇, 并多次被国内外专家引用,SCI他引200余次,包括国际著名学者 G. Fibich的专著(《The Nonlinear Schrodinger Equation: Singular Solutions and Optical Collapse》,Springer, 2015)等, 2篇论文入选ESI高被引,曾获四川省科技进步二等奖(2010,排名5),四川省科技进步三等奖(2022,排名1)。