学术报告
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23
2016-06
矩阵分解及其在社交网络中的应用题目:矩阵分解及其在社交网络中的应用 报告人:张胜元(福建师范大学) 摘要: 本报告从矩阵乘法运算谈起,介绍矩阵分解的意义和若干分解算法,然后综述矩阵分解在社交网络作弊用户检测中的应用。 时间:2016年6月23日(周四)上午 10:00-11:00 地点:首都师范大学北二区教学楼508教室 欢迎全体师生积极参加!
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23
2016-06
Global solution for the 3D gravity water waves system above a flat bottom - 王学成(Princeton University)题目:Global solution for the 3D gravity water waves system above a flat bottom 报告人:Xuecheng Wang (王学成) (Princeton University) 摘要:We consider the $3D$ water waves system above a fixed flat bottom (finite depth) with gravity, meanwhile without su...
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22
2016-06
Connections of three paradigmatic periodic solutions in three-body problem题目:Connections of three paradigmatic periodic solutions in three-body problem 报告人:Zhifu Xie(Virginia State University) 摘要: In this talk, we discuss some preliminary results about the possible connections of periodic solutions in three paradig...
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21
2016-06
The least action principle in geometry - 倪磊(University of California, San Diego)题目:The least action principle in geometry 报告人:倪磊(University of California, San Diego) Abstract: The least action principle plays a fundamental role in natural laws. I shall discuss its role in the study of geometry, set up some framewo...
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20
2016-06
The tropical vertex group and rank 2 scattering diagrams题目:The tropical vertex group and rank 2 scattering diagrams 报告人:覃帆教授(法国斯特拉斯堡大学) 摘要:We present Gross-Pandharipande-Siebert's previous work on the tropical vertex group, which consists of symplectomorphisms of 2-dimensional algebraic to...
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18
2016-06
Ricci Curvature, Volume and Fundamental Groups短期课程班Mini Course短期课程班 题目:Ricci Curvature, Volume and Fundamental Groups 报告人:潘佳垠 (美国罗格斯大学) 时间地点: 6月 9 日(周四) 下午3:00-5:00北一区文科楼402 6月11日(周六) 下午3:00-5:00北一区文科楼402 6月12日(周日) 下午3:00-5:00北一区文科楼402 6月18日(周六) 上午10:00-12:00 北二区教学楼510 ...
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17
2016-06
Masser’s Conjecture on Equivalence of Integral Quadratic Forms题 目:Masser’s Conjecture on Equivalence of Integral Quadratic Forms 报告人:Prof. Li Han(Wesleyan University, US) 摘要: A classical problem in the theory of quadratic forms is to decide whether two given integral quadratic forms are equivalent. Stated...
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17
2016-06
教师数学教学知识与小学生数学学科能力表现及其相关性研究数学教育“理论与实践”学术报告 题目: 教师数学教学知识与小学生数学学科能力表现及其相关性研究 报告人: 刘晓婷 (北京师范大学博士,北京教育学院初等教育学院小学数学教育系系主任) 主持人:姚 芳 报告内容简介: 教师知识的影响研究是一个重要的研究课题,已有研究多聚焦在教师知识与学生学业成绩关系的探索上。然而,数学教学的落脚点应该是学生数学学科能力的培养,基于此有必要探索教师知识与数学学科能力的关系。同时,可用于大规模测量的有效的教师知识测试工具在我国鲜有研究,...
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17
2016-06
Birkhoff normal forms via mould calculus题目:Birkhoff normal forms via mould calculus 报告人:Prof. David SAUZIN(France) 摘要: Several normal form problems in dynamical systems (classical or quantum dynamics), among which Birkhoff normalization near an elliptic fixed point for a Hamilto...
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17
2016-06
Resolving symplectic orbifolds with applications to finite group actions题目:Resolving symplectic orbifolds with applications to finite group actions 报告人:Prof. Weimin Chen (University of Massachusetts) 摘要:Resolving symplectic orbifold singularities, first posed by Gromov in the 1980s, is a basic question i...