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20

2023-09

Mean curvature flow translators with prescribed ends

题目: Mean curvature flow translators with prescribed ends报告人: 孙奥（芝加哥大学）时间：2023年7月12日，15:30-地点：海纳苑2幢101室摘要: Mean curvature flow is the fastest way to decrease the area of surfaces. It is the model in many disciplines such as material science, fluid mechanism, and computer graphics. The translators are a special type of mean curvature flow soliton. They are the singular...

20

2023-09

Stable nearly self-similar blowup of the 2D Boussinesq and 3D Euler equations with smooth data

Title: Stable nearly self-similar blowup of the 2D Boussinesq and 3D Euler equations with smooth data 报告人：陈嘉杰 (Courant Institute, New York University)时间：7月14日(周五)，15:00-16:00，海纳苑2幢204室Abstract: Whether the 3D incompressible Euler equations can develop a finite-time singularity from smooth initial data is an outstanding open problem. In this talk, we will first...

20

2023-09

Hölder stability of quantitative photoacoustic tomography based on partial data

题目： Hölder stability of quantitative photoacoustic tomography based on partial data.报告时间:2023年7月26日 10：00-11：00报告地点：海纳苑2幢210报告厅摘要: The talk is related to the inverse problem of reconstructing the diffusion and absorption coefficients of the diffusion equation from internal data in photo-acoustic imaging. I will show that the problem is Hölder stable in subregi...

20

2023-09

Algebraic Birkhoff factorization and locality in renormalization

20

2023-09

What is in Galois' testamentary letter and why should one read it?

20

2023-09

Generalising Dynamic Semiparametric Averaging Forecasting for Time Series with Discrete-valued Response

报告题目：Generalising Dynamic Semiparametric Averaging Forecasting for Time Series with Discrete-valued Response报告人：Professor Zudi Lu（University of Southampton）时间：2023年8月10日（周四）下午3：00开始地点：腾讯会议会议 ID：196-247-817摘要：Dynamic discrete valued time series data exist in many economic applications, but its research is still relatively rare compared with the rich research o...

20

2023-09

The Balanced Augmented Lagrangian Method for Convex Programming

报告题目：The Balanced Augmented Lagrangian Method for Convex ProgrammingAbstract: We consider the canonical convex minimization problem with both linear equality and inequality constraints, and reshape the classic augmented Lagrangian method (ALM) by better balancing its subproblems. As a result, iterations of the balanced ALM treat the objective function and the coeﬃcient matrix in the constrain...

20

2023-09

Phase transitions with Allen-Cahn mean curvature bounded in Lp.

Title: Phase transitions with Allen-Cahn mean curvature bounded in Lp. Abstract: We consider the varifolds associated to a phase transition problem whose first variation of Allen-Cahn energy is Lp integrable with respect to the energy measure. We can see that the Dirichlet and potential part of the energy are almost equidistributed. After passing to the phase field limit, one can obtain...

20

2023-09

Sobolev inequalities and regularity of the linearized complex MongeAmp\`ere and Hessian equations

报告人：王嘉项博士（南开大学），题目：Sobolev inequalities and regularity of the linearized complex MongeAmp\`ere and Hessian equations摘要：Let $u$ be a smooth, strictly $k$-plurisubharmonic function on a bounded domain $\Omega\in\mathbb C^n$ with $2\leq k\leq n$.In this talk, we will discuss the regularity of solution to the linearized complex Monge-Amp\`ere and Hessian equations when the...

20

2023-09

Loop group action on symplectic cohomology

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