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14

2023-10

计算与应用讨论班-Geometric Quasi-Linearization (GQL) for Bound-Preserving Schemes

题目:计算与应用讨论班-Geometric Quasi-Linearization (GQL) for Bound-Preserving Schemes报告人：吴开亮（南方科技大学）时间：2023年10月20日下午4:00-5:00地点：海纳苑2幢202摘要: Solutions to many partial differential equations satisfy certain bounds or constraints. For example, the density and pressure are positive for equations of fluid dynamics, and in the relativistic case the fluid velocity is up...

13

2023-10

Geometric Quasi-Linearization (GQL) for Bound-Preserving Schemes

题目:Geometric Quasi-Linearization (GQL) for Bound-Preserving Schemes报告人：吴开亮（南方科技大学）时间：2023年10月20日下午4:00-5:00地点：海纳苑2幢202摘要: Solutions to many partial differential equations satisfy certain bounds or constraints. For example, the density and pressure are positive for equations of fluid dynamics, and in the relativistic case the fluid velocity is upper bounded by th...

20

2023-09

Isoperimetry for asymptotically flat 3-manifolds with positive ADM mass

20

2023-09

Multi-parameter quantum groups via quantum quasi-symmetric algebras

报告人：胡乃红教授（华东师范大学）时间：2023年4月15日14:00-14:50地点：腾讯会议ID：113-931-753摘要：In this talk we will recall some background theories which are related to our research interestings, especially reconstruction theory. This is a joint work with Yunnan Li and Marc Rosso.

20

2023-09

q-Coxeter matrix and q-Cartan matrix for a homogeneous bound quiver

报告人：杨士林教授（北京工业大学）时间：2023年4月15日15:00-15:50地点：腾讯会议ID：113-931-753摘要：The aim of the talk is firstly to introduce the concept of q-Coxeter transformation and q-Coxeter matrix for a connected acyclic bound quiver (Q, I) of a homogeneous relations I, then to establish the relationship between q-Coxeter matrix and q-Cartan matrix of (Q, I).

20

2023-09

海森堡型群上中心极大函数弱（1， 1）范数关于维数的估计

Title: 海森堡型群上中心极大函数弱（1， 1）范数关于维数的估计 Speaker:李洪全（复旦大学） Time:2023-04-20，9:50-10:50Location:海纳苑2-203Abstract:考虑海森堡型群 H(2n, m)上由Koranyi范数定义的中心极大函数 M_K，通过利用驻相位法我们证明存在与维数无关的常数 C ...

20

2023-09

Rota-Baxter groups, post-groups and related structures

报告题目：Rota-Baxter groups, post-groups and related structures报告人：生云鹤教授（吉林大学）时间：4月23日9：00-10：50地点：腾讯会议910767526摘要：Rota-Baxter operators on Lie algebras were first studied by Belavin, Drinfeld and Semenov-Tian-Shansky as operator forms of the classical Yang-Baxter equation.As a fundamental tool in studying integrable systems, the factorization theorem of...

20

2023-09

Randomized algorithms for fully online multiprocessor scheduling with testing

报告题目： Randomized algorithms for fully online multiprocessor scheduling with testing.报告人：龚铭炀（加拿大阿尔伯塔大学）报告摘要： Multiprocessor scheduling is one of the famous combinatorial optimization problems that receives numerous studies. Recently, its testing variant is investigated by several research groups, in which each job Jj arrives with a...

20

2023-09

非线性密码组件的设计与分析

20

2023-09

深度学习中的Adam类算法：收敛性分析以及在双层规划中的应用

报告题目：深度学习中的Adam类算法：收敛性分析以及在双层规划中的应用报告人：胡潇尹（浙大城市学院）报告时间：2023年6月7日（周三）16:00报告地点：海纳苑2幢105摘要：本报告主要关注Adam类方法在求解非光滑优化问题，特别是在训练非光滑的深度神经网络时的收敛性分析。我们提出了一个统一的双时间尺度步长（two-timescale stepsize）的理论框架，应用微分包含（differential inclusion）来分析Adam类方法所产生迭代点的极限性...

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