報告人:郭宗明 教授
報告題目:Slow-decay solutions for some elliptic equations in exterior domains
報告時間:2025年10月11日(周六)上午8:00
報告地點:云龍校區6號樓304會議室
主辦單位:數學與統計學院、數學研究院、科學技術研究院
報告人簡介:
郭宗明,河南師范大學數學與信息科學學院教授,理學博士、博士生導師、河南省特聘教授。曾任中國數學會理事、河南省數學會理事長、河南師范大學數學與信息科學學院院長、河南師范大學校學術委員會副主任。長期從事非線性偏微分方程與泛函分析領域的教學科研工作。他于1982年獲新鄉師范學院(現河南師范大學)數學學士學位,1987年在中國科學院數學所獲碩士學位,1992年獲英國格拉斯哥大學數學博士學位,并在澳大利亞新英格蘭大學和悉尼大學完成博士后研究。
報告摘要:
We are interested in structure of positive solutions for some elliptic problems in exterior domains.It is well-known that Liouville-type results can be obtained for subcritical and critical cases of the problems. This means that the problems with subcritical and critical exponents do not admit nontrivial nonnegative solutions in exterior domains. In supercritical case, the problems admit positive radial fast-decay solutions. But the exact structure of positive fast-decay and slow-decay solutions for the problems is still unclear. We construct infinitely many positive slow-decay solutions for the problems via asymptotic expansions of prescribed solutions of the problems at an isolated singular point and sub- and super-solution argument.