学术报告
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10
2024-09
线性码的一个新的上界和部分权重码字的消去 -
07
2024-09
二阶椭圆非线性偏微分方程有限元离散系统的迭代两网格法题目：二阶椭圆非线性偏微分方程有限元离散系统的迭代两网格法 报告人：钟柳强 教授(华南师范大学) 摘要：首先，针对拟线性椭圆问题的协调有限元离散系统，设计和分析了相应的迭代两网格法; 其次, 针对拟线性椭圆问题的内罚间断有限元离散系统，证明了有限元解的存在唯一性和先验误差估计,并设计和分析了一种迭代两网格算法, 值得注意的是, 该算法的有效性依赖于迭代算法初值的选取, 为此需构造了一个相应的辅助变分问题. 最后, 针对强非线性椭圆问题的协调有限...
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02
2024-09
PDEs for neural assemblies; analysis, simulations and behavior but it could also be on tumor growthDistinguished Lecture Series in Mathematics 系列数学前沿学术讲座 报告题目：PDEs for neural assemblies; analysis, simulations and behavior but it could also be on tumor growth 报告人：Prof. Benoit Perthame（Laboratoire J.-L. Lions, Sorb...
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31
2024-08
Long time existence for surface waves Boussinesq systems题目：Long time existence for surface waves Boussinesq systems 报告人：徐丽 教授（北京航空航天大学） 摘要：We prove long time existence results for the solutions of Boussinesq system modeling the propagation of long, weakly nonlinear water waves. ...
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31
2024-08
A priori estimate for the water waves in a corner domain题目：A priori estimate for the water waves in a corner domain 报告人： 明梅 教授 （云南大学） 摘要：We prove a weighted a priori energy estimate for the two dimensional water-waves problem with contact points in the absence of gravity and sur...
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23
2024-08
Toric Einstein 4-manifolds with nonnegative sectional curvature题目：Toric Einstein 4-manifolds with nonnegative sectional curvature 报告人：刘天约(北京大学) 摘要：We study some interesting curvature properties of Einstein 4 manifolds in the presence of symmetry. In particular we show that the only ...
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23
2024-08
Spiral minimal products题目：Spiral minimal products 报告人：张永胜教授(首都师范大学) 摘要：We discover a structure -- spiral minimal product (SMP) among minimal submanifolds in unit Euclidean spheres. For a pair of C-totally real minimal submanifolds f1 and f2, their...
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21
2024-08
Anisotropic capillary hypersurfaces in a wedge题目：Anisotropic capillary hypersurfaces in a wedge 报告人：马辉教授(清华大学) 摘要：Alexandrov's Soap Bubble Theorem is a fundamental result in differential geometry. In this talk we establish Minkowski formulae and a Heintze-Karcher type inequality for ...
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20
2024-08
Tangent cones of asymptotically flat 4-manifolds with cone structure题目：Tangent cones of asymptotically flat 4-manifolds with cone structure 报告人：李明阳(美国加州大学伯克利分校) 摘要：It was proved by Petrunin and Tuschmann around 2000 that for an asymptotically flat 4-manifold whose tangent cone is a metric cone...
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13
2024-08
Feynman Graph Integrals and Configuration Spaces动力系统讨论班-短课程 题目：Feynman Graph Integrals and Configuration Spaces 报告人：王明浩博士（Boston University） 摘要：In this mini-course, I will introduce Feynman graph integrals from topological and holomorphic quantum field theories. For ap...