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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...

30

2021-04

罗栗: From quantum group to i-quantum group

报告人：罗栗（华东师范大学数学科学学院副教授）时间：4月30日, 9:00-9:50地点: 数学高等研究院一楼报告厅摘要：As generalizations of quantum groups, the i-quantum groups have recently drawn considerable attention because of its application in Kazhdan-Lusztig theory due to Bao and Wang. In this talk, we will introduce some developments on the study of i-quantum groups. Precisely, we will establish the g...

26

2021-04

Crossing probability in Gaussian Free Field

报告人: Professor Hao Wu （Tsinghua University）时间：2021 年 4 月 26 日下午 3:00 开始地点：浙江大学（玉泉校区）数学科学学院逸夫工商楼 200-9 Abstract: Two-dimensional Gaussian free field (GFF) is a natural 2D time analogue of Brownian motion. It is also ...

23

2021-04

Improved Weak Galerkin method for Stokes equations

摘要：A new weak Galerkin method called improved weak Galerkin method (iWG) is introduced for Stokes equations in this work. There is a new definition for weak gradient which is the main novelty. Based on the new gradient, the error estimates in energy norm and L^2 norm for velocity and L^2 norm for pressure are derived for elements with arbitrary combination of polynomials. Several numerical exam...

23

2021-04

Some space-time methods for solving time-dependent problems

摘要：In this talk, we first give an overview of several important time parallel methods including parallel and waveform relaxation algorithms. Then, we introduce the space-time multiplicative Schwarz method for solving a system arising from the discretization of the linear parabolic equations. We obtain lower and upper bounds for the spectrum of the preconditioned operator and their dependency on...

23

2021-04

Positive mass theorems of ALF and ALG manifolds

报告人：史宇光教授（北京大学数学学院）时间：2021年4月23日（周五）下午14:00-15:00 地点：工商楼200-9会议室摘要: In this talk, we will prove positive mass theorems for ALF and ALG manifolds with model spaces $R^{n-1}\times S^1$ and $R^{n-2}\times T^2$ respectively in dimensions no greater than 7. Different from the compatibility condition for spin structure in T...

23

2021-04

洛伦兹几何与爱因斯坦场方程

报告人：陈兵龙教授（中山大学数学科学学院）时间：2021年4月23日上午10:30-11:30地点：工商楼200-9教室题目：洛伦兹几何与爱因斯坦场方程摘要：在本报告中，我们将综述几何分析方法在洛伦兹几何及爱因斯坦场方程方面的部分进展。联系人：盛为民（shengweimin@zju.edu.cn ）

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