2008-08-29 Wan Daqing: The Shortest Lattice Vector Problem

Speaker: Daqing Wan (University of California, Irvine)

Title: The Shortest Lattice Vector Problem

Time: 2008 Aug 29, Friday 4:00pm-5:00pm

Place: Capital Normal University, Department of Math, Room 210

Abstract: Given a n-dimensional lattice in the m-dimensional
Euclidean space R^m, the shortest lattice vector problem (SVP)
is to find a shortest non-zero lattice vector. This optimization
problem has wide ranging fundamental applications in mathematics,
computer sciences and enginnering. The history of SVP dates back
to Gauss, Dirichlet and Hermite who studied it in the language of
quadratic forms in connection to number theory and diophantine
approximation. Proving the existence of short lattice vectors is
a central problem in geometry of numbers as founded by Minkowski.
The celebrated LLL (Lenstra-Lenstra-Lovasz) algorithm was a major
breakthrough in solving SVP. The SVP is currently one of the most
active and intensively studied topics in mathematics and
computer sciences.

In this expository lecture, we shall give an overview of the
developments on the SVP, as well as its connections to
computational complexity (NP-hard problems) and cryptography,
focusing more on recent progresses.

GL(2):王崧,徐飞

王崧（8月25日周一 下午2：30-5：30）：The classical local Langlands correspondence of GL(2)

徐飞（8月27日周三 下午2：30-5：30）：The standard presentation of GL(2) in sense of Colmez

报告地点：晨兴110

欧阳毅：“\phi-\Gamma"-modules

欧阳毅教授
中科大

本周二，四，六（8月12日，14日和16日）和下周一，三，五（8月18日，20日及22日）2：30-5：30 pm，

将给关于“\phi-\Gamma"-modules系列报告。报告地点：晨兴110.

PDF

Noriko Yui, On the modularity of certain K3 fibered Calabi-Yau threefolds

晨兴-清华学术报告

报告人：Prof. Noriko Yui
Queen’s University

报告内容：On the modularity of certain K3 fibered Calabi-Yau threefolds

时间：8月18日(周一) 4：30-5：30 pm

地点：晨兴110室

Colmez: the p-adic local Langlands correspondance for GL2(Qp)

Colmez教授10月10日-11月10日在晨兴开设“the p-adic local Langlands correspondance for GL2(Qp)”系列讲座。
从下星期开始我们将围绕这个课题开展讨论班。具体安排将和欧阳毅，田野等商量后通知大家。

以下是Colmez网页上的三篇论文供大家参考：

1. "(phi,Gamma)-modules et representations du mirabolique",
2."(phi,Gamma)-modules et representations de GL2(Qp)",
3."Fonctions d'une variable p-adique".

2008-08-08 Zhang Shou-wu: Periods

Title: Periods
Speaker: Zhang Shou-wu (Columbia University)
Time: 2008-08-08 Friday 11:00am-12:00am.
Place: Capital Normal University, Department of Math, Room 210

Audio of the talks.

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