报告题目:Orbital Stability of Standing Waves for the D-S System with a Defocusing Perturbation
报告时间:2025年11月4日(周二)下午15:30-17:00
报告地点:犀浦校区X30456
报告人:朱世辉,四川师范大学教授
邀请人:杨晗
报告摘要:This talk studies the sharp criteria of blow-up and global existence of solutions to the Davey-Stewartson system with a defocusing perturbation, and then the open problem proposed by Gan and Zhang (Commun. Math. Phys., 283(1), 93-125, 2008) is solved. The lower bound rate of blow-up solutions for the Davey-Stewartson system is obtained by overcoming the loss of scaling invariance. Finally, a sharp criteria of the existence of stable standing waves is obtained by constructing cross-constraint flows and variational problems. This work joint with Guoyi Fu.
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,四川省天府青城计划入选者,四川省学术和技术带头人后备人选。研究方向为数学物理与偏微分方程,主要从事非线性薛定谔方程孤立子解的存在性与稳定性、解整体存在的最佳判别准则与动力学性质的研究。主持国家自然科学基金面上项目、教育部博士点基金、四川省杰出青年基金等10余项课题。发表SCI检索论文40余篇, SCI他引400余次。获四川省自然科学奖三等奖(2022年,第一完成人),二等奖(2010年),四川省优秀教学成果二等奖(2018年),担任《Journal of Nonlinear Mathematical Physics》等SCI刊物编委。