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发布时间:2019-05-20文章来源:华南理工大学数学学院浏览次数:351

报告题目一:Nonlinear Singular Elliptic Equations

报  告  人:Nikolaos S. Papageorgiou  教授(希腊雅典国立科技大学)

报告时间:2019522日(星期三)下午15:30-16:30                

 

报告题目二:The Process of Article Review and Publication 

报  告  人:Shouchuan Hu  教授 (美国密苏里州立大学)

报告时间:2019522日(星期三)下午16:35-17:35               

 

报告地点:37号楼3A02

邀  请  人:朱长江教授、温焕尧教授

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数学学院

2019520

报告一摘要:

We consider a Dirichlet problem driven by the sum of a p-Laplacian with p>2 and of a Laplacian. Such an equation is known as a (p, 2)-equation. The fact that the differential operator is not homogeneous is a source of difficulties in the analysis of the equation. The source of the problem (right hand side) consists of two terms. One is singular and a particular case is u^{-\gamma} with 0<\gamma<1 which we encounter in the literature. The second term is a caratheodory function f(z,x) which is (n-1)-superlinear near infinity but need not satisfy the usual in such cases Ambrosetti-Rabinowitz condition. We point out that the source of the problem is nonparametric and this is an additional difficulty in the analysis of the equation. Using variational tools based on the critical point theory together with truncation and comparison techniques, we show that the problem has two positive smooth solutions.

 

报告人简介:

Nikolaos S. Papageorgiou本科就读于美国麻省理工学院,博士毕业于哈佛大学,现为雅典国立科技大学教授。主要研究领域为非线性泛函分析、偏微分方程、优化与最优控制等,曾担任Disc. Cont. Dynam. Syst., Nonlinear Anal.等国际知名刊物的副主编,在Memoirs Amer. Math. Soc.Trans. Amer. Math. Soc.Annales de l'Institut Henri Poincare (C) Non Linear Analysis 等权威刊物上发表SCI收录论文300余篇。

 

报告二摘要:

We will discuss about the value-added process of article review, and the frustrations, questions and mysteries within.

 

报告人简介:

胡守川,现任美国密苏里州立大学数学系杰出教授,主要研究方向为非线性分析和微分方程与动力系统。创办了多个国际著名学术期刊,例如Disc.Cont.Dynam. Syst.Commun. Pur. Appl. Anal. 并一直担任主编。这些杂志在微分方程、动力系统及应用等领域扮演着国际导引的重要角色,其编委会由相关领域全球最权威的数学家,如菲尔兹奖获得者和多个国家的科学院院士等组成。