学术报告
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25
2023-09
切触拓扑中的刚性性质-高鸿灏(清华大学)动力系统讨论班 报告题目:切触拓扑中的刚性性质 报告人:高鸿灏(清华大学) Abstract: 勒让德纽结是三维切触空间中的重要几何结构。他们的拉格朗日填充可以用来研究4维辛流形。通过代数不变量,我们可以对勒让德纽结和拉格朗日填充进行分类,即切触拓扑与辛拓扑中的刚性研究。我们将对一些刚性性质进行介绍。 报告时间:2023年09月25日(周一)上午10:30-11:30 报告地点:澳门沙金在线平台澳门沙金在线平台本部新教二楼510教室 联系人:孙善忠
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22
2023-09
Sign-changing solution for an overdetermined elliptic problem on unbounded domain-代国伟 教授(大连理工大学)报告题目:Sign-changing solution for an overdetermined elliptic problem on unbounded domain 报告人:代国伟 教授(大连理工大学) 时间:2023 年 9 月 22 日(周五)上午10:00-11:00 地点:教二楼 608 联系人:苏加宝,田如顺
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16
2023-09
Permutation groups: bases and Saxl graphs-黄弘毅 (University of Bristol)报告题目: Permutation groups: bases and Saxl graphs 报告人: 黄弘毅 (University of Bristol) Abstract:Let be a permutation group on a finite set Ω. A base for G is a subset of Ω with trivial pointwise stabiliser, and the base size of G, denoted b(G)...
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15
2023-09
关于散度型超抛物方程弱解的正则性-张立群 研究员(中国科学院)报告题目:关于散度型超抛物方程弱解的正则性 报告人:张立群 研究员(中国科学院) 摘要:我们将报告散度型有界可测系数的超抛物型方程弱解正则性方面的进展及相关的研究,我们首先介绍相关方程的背景和在不同相关领域的应用,重点介绍De Giorgi-Nash-Moser 的正则性理论在该方面研究上的发展,最后介绍一下在相关问题研究上的应用。 报告人简介:张立群,中科院数学与系统科学研究院研究员、中国科学院大学教授。2003年获得国家杰出青年基金获得者,中科院百人计划。张立群研...
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14
2023-09
Coupled nonlinear elliptic equations with mixed coupling-Prof. Zhi-Qiang Wang, Utah State University报告题目:Coupled nonlinear elliptic equations with mixed coupling 报告人:Prof. Zhi-Qiang Wang, Utah State University 摘要: We survey works on positive solutions for a class of coupled nonlinear elliptic equations with attractive, repulsive, mixed c...
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08
2023-09
Nonlinear Dynamic Spatio-Temporal Modelling and Its Applications-Zudi Lu (University of Southampton)题目:Nonlinear Dynamic Spatio-Temporal Modelling and Its Applications 报告人:Zudi Lu (University of Southampton) 摘要:Nonlinear dynamic modelling of spatio-temporal data is often a challenge, especially due to irregularly observed locations and l...
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07
2023-09
Stability for entire radial solutions to some biharmonic equations-周风 教授(华东师范大学数学学院)题目:Stability for entire radial solutions to some biharmonic equations 报告人:周风 教授(华东师范大学数学学院) Abstract: We will talk about the stability for solutions of a biharmonic equations with negative exponent and a Henon type equation with exponent...
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01
2023-09
The Brauer group in arithmetic geometry-Alexei Skorobogatov 教授(英国帝国理工)报告题目: The Brauer group in arithmetic geometry 报告人:Alexei Skorobogatov 教授(英国帝国理工) 时间:9月1-30日,周二上午:10:30-11:30 周五下午:2:30-3:30Abstract: In these series lectures, I would cover connections with Galois representations, Tate and Mumford...
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28
2023-08
On Kähler Ricci shrinker surfaces-王兵教授 (中国科学技术大学)题目:On Kähler Ricci shrinker surfaces 报告人:王兵教授 (中国科学技术大学) Abstract: We prove that any Kähler Ricci shrinker surface has bounded sectional curvature. Combining this estimate with earlier work by many authors, we provide a complete classifi...
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09
2023-08
Legendrian mean curvature flow in η-Einstein Sasakian manifolds-韩英波教授 (信阳师范大学)题目:Legendrian mean curvature flow in η-Einstein Sasakian manifolds 报告人:韩英波教授 (信阳师范大学) 摘要: Recently, there are a great deal of work done which connects the Legendrian isotopic problem with contact invariants. The isotopic problem of Legen...