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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...

09

2021-05

商学院的运营管理方向

题目：商学院的运营管理方向报告时间：2021年05月09日 09：30-10：30网络报告地点：腾讯会议491 833 343报告人：辛林威助理教授（芝加哥大学Booth商学院）摘要：商学院的运营管理方向：学术研究，博士申请，以及博士毕业之后的出路。报告的主要面向对象是数学专业的本科生。联系人: 席亚昆 (yakunxi@zju.edu.cn)

07

2021-05

A conservative semi-Lagrangian hybrid Hermite WENO scheme for linear transport equations and the nonlinear Vlasov-Poisson system

报告人：邱建贤（厦门大学数学科学学院教授）时间：2021年5月7日（周五）上午10：00-12：00 地点：工商楼200-9会议室内容简介：In this presentation, we will present a high order conservative semi-Lagrangian (SL) hybrid Hermite weighted essentially non-oscillatory (HWENO) scheme for linear transport equations and the nonlinear Vlasov-Poisson (VP) system. The proposed SL hybrid HWENO scheme adopts a weak fo...

30

2021-04

Cluster categories and rational curves

报告人：华诤副教授（香港大学）时间地点：4月30日4:00-5:00 ，工商管理楼200-9教室摘要：Given a semi-simple collection of rational curves on a smooth quasi-projective 3-fold, its multipointed noncommutative deformation is represented by a negatively graded DGA \Gamma. The finite dimensionality of the cohomology of \Gamma seems to relate to contractibility of the collection of rational curves. For CY 3...

30

2021-04

Singularities of Minimal Model Program

报告人：陈亦飞博士（中科院数学与系统科学研究院副研究员）时间：2021年4月30日（星期五）上午10:00 地点：浙大紫金港校区东七“数学高等研究院”报告厅摘要：Singularities play an important role in the Minimal Model Program (MMP), which aims to birationally classify algebraic varie...

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