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27

2021-05

虚拟制造中的数值计算

报告人：王玮（美国西北大学机械工程系复核材料专业访问学者、晶临软件科技有限公司总经理）时间：2021年5月27日下午4:00-6:00地点：玉泉校区逸夫工商管理楼200-9室摘要：数值仿真是一种基于物理、数学模型，依靠电子计算机，通过数值计算和图像呈现的方式，达到对工程、物理问题研究的技术。其核心是模型和算法的建立，结果呈现则依靠计算机图形学。现阶段数值计算最重要的应用场景是虚拟设计和虚拟制造，它归属于CAE(Computer Ai...

25

2021-05

Falconer's distance set problem

报告人：Xiumin Du (Northwestern University)时间：2021年5月25日（星期二）上午9:00-10:00地点：腾讯会议（会议ID：130 921 098 会议密码：310027）链接:https://meeting.tencent.com/s/bKSKrCPeByhx摘要： A classical question in geometric measure theory, introduced by Falconer in the 80s is, how large does the Hausdorff dimension of a compact subset in Euclidean space need to be to en...

18

2021-05

Quasifinite representations of the Virasoro-like algebra

报告人：苏育才（同济大学数学研究所所长）时间：2021年5月18日（周二）15:30-16:30地点：玉泉校区工商楼200-9摘要:The Virasoro-like algebra, a natural generalization of the well-known Virasoro algebra, is a Lie algebra closely related to Block type or Cartan type Lie algebras. In this talk, we present some results on Quasifinite representations of the Virasoro-like algebra. 联系人：吴志祥（wzx@zju....

14

2021-05

Full stable trace formula for the group Mp(2n)

报告人：李文威（北京国际数学研究中心）时间：2021年5月14（周五）15:20-16:20地点：玉泉校区邵逸夫科学馆211摘要: The metaplectic covering Mp(2n) of Sp(2n) plays a pivotal role in various aspects of representation theory and arithmetics. In order to harness the full power of Arthur's methods in this setting, we need a stable trace formula for Mp(2n). Thus far, only the elliptic terms have been stab...

12

2021-05

Quiver with potentials for generalized cluster algebras from orbifolds

报告人：Dr. Lang Mou（牟浪博士）（University of Leicester, UK）时间： 2021.5.12（周三），16:00-17:00地点：玉泉校区欧阳楼316Abstract: To a marked bordered surface with orbifold points of order 3, we associated a quiver (with loops) with potential. We then connect the cluster structure of the corresponding skew-symmetrizable matrix with the stability conditions and the \tau-tiliting theor...

12

2021-05

计算流体力学的时空观：模型的时空关联性及算法的时空耦合性

报告人：李杰权（北京应用物理与计算数学研究所）时间：2021年5月12日下午3:45-6:30地点：玉泉校区逸夫工商管理楼105室摘要：流体力学中波的有限传播、粒子的碰撞、各种力之间相互作用，无不体现时空关联效应。本文以计算方法的视角探讨计算流体力学的时空观，即流体力学模型的时空关联性，计算方法的时空耦合性。从流体力学微团法建模出发，明确模型时空关联性的涵义，建立有限体积格式的基本原理，阐述算法时空耦合的必要性，实...

12

2021-05

A universal method for solving elliptic PDEs with singular boundary data on non-smooth domains

Speaker: Prof.Shidong Jiang New Jersey Institute of Technology, USAAbstract: A numerical scheme is presented for the solution of Fredholm second-kind boundary integral equations with right-hand sides that are singular at a finite set of boundary points. The boundaries themselves may be non-smooth. The scheme, which builds on recursively compressed inverse preconditioning (RCIP), ...

11

2021-05

A free boundary problem on 2D liquid crystal droplets

报告人: 耿志远（Basque Center for Applied Mathematics）时间: 5月11日周二下午2:00-4:00地点：欧阳楼314摘要: Liquid crystal droplets are of great interest from physics and applications. They are important in the studies of topological defects, both in a bulk and on a surface, in understanding of anisotropic surface energies and anchoring conditions of liquid crystals. In this lecture I will ta...

11

2021-05

Interface Dynamics in a Two-phase Tumor Growth Model

报告人：童嘉骏（Hedrick Assistant Adjunct Professor，UCLA）时间：2021年5月11日，周二10:45-11:45地点：欧阳楼314Abstract: We study a two-phase tumor growth model in two space dimensions, where proliferation of the tumor cells leads to expansion of the tumor domain and migration of surrounding normal cells into the exterior vacuum. Instead of considering evolution of cell densities, our focus will be...

10

2021-05

ASYMPTOTIC DISTRIBUTIONS OF HIGH-DIMENSIONAL DISTANCE CORRELATION INFERENCE

Speaker: Qi-Man Shao Department of Statistics and Data Science Southern University of Science and TechnologyAbstract: Distance correlation has become an increasingly popular tool for detecting the nonlinear dependence between a pair of potentially high-dimensional random vectors. Most existing works have explored its asymptotic distributions under the null hypothesis of independence be...

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