学术报告
-
02
2018-11
Estimation and variable selection in generalized partially nonlinear models with nonignorable missing responses - 唐年胜 教授 (云南大学数学与统计学院)题目: Estimation and variable selection in generalized partially nonlinear models with nonignorable missing responses 报告人:唐年胜 教授 (云南大学数学与统计学院) Abstract : Based on the local kernel estimation method and propensity score adjustment method, we devel...
-
02
2018-11
Isoparametric theory and its applications - 唐梓洲 教授(南开大学陈省身数学研究所)题目:Isoparametric theory and its applications 报告人:唐梓洲 教授(南开大学陈省身数学研究所) Abstract: The talk will introduce the history of isoparametric theory (isoparametric hypersurface and isoparametric polynomial) in differential geometry, o...
-
01
2018-11
Stability of Ricci Solitons - 曹怀东, (Lehigh)里海大学题目:Stability of Ricci Solitons 报告人: 曹怀东, (Lehigh)里海大学 Abstract: Ricci solitons are natural extensions of Einstein metrics and self-similar solutions to the Ricci flow. They also play an important role in the study of formation of sin...
-
31
2018-10
Ramification bound of nearby cycles of l-adic sheaves - 胡昊宇 (南京大学)题目: Ramification bound of nearby cycles of l-adic sheaves 报告人:胡昊宇 (南京大学) Abstract : In this talk, we use Abbes-Satio’s ramification theory and the theory of singular supports and characteristic cycles to studying the bound of ramification ...
-
26
2018-10
A Connecting Hodge integrals to Gromov-Witten invariants by Virasoro operators Curvature - 刘小博 (北京大学)题目:A Connecting Hodge integrals to Gromov-Witten invariants by Virasoro operators Curvature 报告人: 刘小博, 北京大学 Abstract: Kontsevich-Witten tau function and Hodge tau functions are important tau functions for KP hierarchy which arise in geom...
-
25
2018-10
Can You Pave The Plane Nicely With Identical Tiles? - 宗传明教授,天津大学题目:Can You Pave The Plane Nicely With Identical Tiles? 报告人:宗传明教授,天津大学 Abstract. Everybody knows that identical regular triangles or squares can tile the whole plane. Many people know that identical regular hexagons can tile the plane prop...
-
25
2018-10
Perfect State Transfer on Abelian Cayley Graphs - 冯克勤 清华大学数学科学系题目:Perfect State Transfer on Abelian Cayley Graphs 报告人: 冯克勤 清华大学数学科学系 Abstract: 设 G=(V,E) 为连通无向简单图,A=A(G) 为它的adjacency 方阵。则 H(t)=exp(itA)=(Hu,v(t))为unitary 方阵。称顶点u到v在时刻t有Perfect state transfer(PST)是指 (Hu,v(t))的绝对值=1。量子通信和量子计算的一个基本问题...
-
25
2018-10
On the Minimum Average Distance of Binary Constant Weight Codes - 符方伟教授, 南开大学陈身省数学研究所题目:On the Minimum Average Distance of Binary Constant Weight Codes 报告人:符方伟教授, 南开大学陈身省数学研究所 Abstract: Let β(n, M, w) denote the minimum average Hamming distance of a binary constant weight code with length n, size M and weight w. We study t...
-
25
2018-10
综述报告 - The limits of the Boltzmann equation - 黄飞敏教授(中国科学院数学与系统科学研究院) -
25
2018-10
综述报告 - A new approach to build Saito's flat structure for singularities - 范辉军 教授 (北京大学)