学术报告
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18
2019-04
The Borsuk-Ulam type Theorem for maps from a surface to the 2-dimensional sphere.(joint work with John Guaschi and Vinicius Laass) - Daciberg Lima Goncalves(圣保罗大学 巴西)题目：The Borsuk-Ulam type Theorem for maps from a surface to the 2-dimensional sphere. (joint work with John Guaschi and Vinicius Laass) 报告人:Daciberg Lima Goncalves (圣保罗大学，巴西) Abstract：We consider the set of maps $f: S/to S^2$ from a surface...
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18
2019-04
Computation of the Nielsen Borsuk-Ulam number - Peter Wong(Bates Collage 美国）题目：Computation of the Nielsen Borsuk- Ulam number 报告人： Peter Wong （Bates Collage 美国） Abstract : Given a free involution $/tau$ on a space $X$ and a map $f:X/to Y$, a Nielsen type number (Nielsen Borsuk-Ulam) $NBU(f,/tau)$ h...
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18
2019-04
On Linear b-Symbol Perfect Codes over Finite Fields-冯荣权教授（北京大学）题目：On Linear b-Symbol Perfect Codes over Finite Fields 报告人：冯荣权教授（北京大学） Abstract : Recently, Cassuto and Blaum introduced codes for symbol-pair read channels and Yaakobi et al. generalized the coding framework to that f...
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18
2019-04
计算光场显微成像方法及其在全脑结构功能成像中的应用 - 毛珩 博士 北京大学565net必赢客户端信息科学系题目：计算光场显微成像方法及其在全脑结构功能成像中的应用 报告人：毛珩 博士 北京大学565net必赢客户端信息科学系 摘要： 快速发展的荧光显微成像技术以更高分辨率、更大视场、更深脑区、更快速、更便捷方式对活体动物的神经元群体或个体实现功能和结构成像。通过解读这些神经群体或个体的“身份秘密”和“调控功能”，能极大地促进了神经科学的重大发现。斑马鱼大脑有近千万个神经元，结构和功能复杂，具备短程和长程记忆，被公认是高分辨率逆向解析生物脑的快速学习和记忆形成的最佳模型。现有逐层光片显微成像模...
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17
2019-04
On the boundary condition for the Boltzmann equation - Prof. Kazuo Aoki (Kyoto University and National Cheng Kung University, Japan)题目：On the boundary condition for the Boltzmann equation 报告人：Prof. Kazuo Aoki (Kyoto University and National Cheng Kung University, Japan) Abstract : In order to apply the Boltzmann equation to physical problems, we need appropriate b...
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16
2019-04
The curved n-body problem. Relative equilibria and the restricted case - Juan Sanchez ( 博士，四川大学)题目：The curved n-body problem. Relative equilibria and the restricted case 报告人：Juan Sanchez ( 博士，四川大学) Abstract : The curved n-body problem is a generalization of the Newtonian gravitational problem to spaces of constant G...
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16
2019-04
Lp weighted energy methods and compressible Navier-Stokes equations - 徐江教授 (南京航空航天大学)系列课程 题目：Lp weighted energy methods and compressible Navier-Stokes equations 报告人：徐江教授 (南京航空航天大学) 摘要:The global existence issue in critical spaces for compressible Navier–Stokes equations, was addressed by Danchin (In...
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15
2019-04
《数论与代数几何》讨论班 - Local triviality for G-torsors - Philippe Gille 教授《数论与代数几何》讨论班 题目：Local triviality for G-torsors 报告人：Philippe Gille 教授 （CNRS，法国里昂大学） Abstract : This is a report on a joint work with R. Parimala and V. Suresh.Let C → Spec(R) be a relative proper flat curve over an henselian...
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12
2019-04
On some determinants involving Legendre or Jacobi symbols - Prof. Zhi-Wei Sun（Nanjing University）综述报告 题目：On some determinants involving Legendre or Jacobi symbols 报告人：Prof. Zhi-Wei Sun（Nanjing University） 摘要: Let p be an odd prime and let n>1 be an odd integer. In this talk we mainly introduce results and conjectures for the determinant...
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12
2019-04
On the nonexistence of lattice tilings of Zn by Lee spheres - 张韬副教授, 广州大学题目：On the nonexistence of lattice tilings of Zn by Lee spheres 报告人: 张韬副教授, 广州大学 Abstract: In 1968, Golomb and Welch conjectured that Zn cannot be tiled by Lee spheres with a fixed radius r 2 for dimension n 3. This conj...