Yitang Zhang got into Mathematics Department at University of California, Santa Barbara in 2015. He is now a Professor of Mathematics, USCB.

ZHANG, Yitang
Mathematics, Professor
Ph.D., Purdue University
Research Interests:  prime numbers, analytic number theory.

## [Distinguished Lecture] Small gaps between primes

July 20, 2015 15:00-16:00, 镜春园82号甲乙丙楼的中心报告厅

Abstract: The twin prime conjecture states that there are infinitely many pairs of distinct primes which differ by 2. Until recently this conjecture had seemed to be out of reach with current techniques. However, in 2013, the author proved that there are infinitely many pairs of distinct primes which differ by no more than B with B = 7· 107. The value of B has been considerably improved by Polymath8 (a cooperative team) and Maynard.

In this talk we shall describe the basic ideas which lead to the proofs of the above results. In particular, a breakthrough on the distribution of primes in arithmetic progressions will be introduced.

## 素数的gap

8 月 22 日  浙江大学理学大讲堂

## 我的数学人生

8 月 24 日下午 3:30-5:00

Counting from Infinity, A film about Yitang Zhang and the twin prime conjecture, 终于公映了

Yitang Zhang

Counting From Infinity, 一个关于 Tom 的电影, 出笼了.

Yitang Zhang is giving the last invited talk at ICM 2014, “Small gaps between primes and primes in arithmetic progressions to large moduli”.

Yitang Zhang is giving the last invited talk 1

Yitang Zhang stepped onto the main stage of mathematics last year with the announced of his achievement that is hailed as “a landmark  theorem in the distribution of prime numbers”.

Yitang Zhang is giving the last invited talk 2

Yitang Zhang is giving the last invited talk 3

ICM 2014 Program

4 个数学家将获得本届大会的 Fields Medal.

1. A Transition Formula for Mean Values of Dirichlet Polynomials
2014,6.23./6.25. 9:30-11:30

2. 关于 Siegel 零点
2014.7.2.9:30-11:30

3. Distribution of Prime Numbers and the Riemann Zeta Function
July 8, 10, 2014 16:00-17:00, 镜春园82号甲乙丙楼的中心报告厅
July 15, 16:30-17:30 镜春园 78 号院的 77201 室.

4. 关于 Siegel 零点(2)
014.7.16./7.30./8.4./8.6. 9:30-11:30
N820

7 月他在母校北京大学的北京国际数学研究中心 (BICMR) 有一个系列的学术报告: Distribution of Prime Numbers and the Riemann Zeta Function I, II, III. 这个报告分三场, 原定时间是 July 8, 10, 15,  2014 16:00-17:00, 地点是镜春园 78 号院的 77201 室.

BICMR 官网上这个报告的 Abstract 是这么写的:

The distribution of prime numbers is one of the most important subjects in number theory.

There are many interesting problems in this field. It may not be difficult to understand the problems themselves, but the solutions are extremely difficult.

In this series of talks we will describe the application of certain analytic tools to the distribution of prime numbers. In particular, the role played by the Riemann zeta function will be discussed. We will also describe some early and current researches on the Riemann Hypothesis.

These talks are open to everyone in the major of mathematics, including undergraduate students.

Yitang Zhang at BICMR :Distribution of Prime Numbers and the Riemann Zeta Function

8 日下午 4 点, 田刚现身. 因为人比较多, 改为在镜春园82号甲乙丙楼的中心报告厅进行. 主持人刘若川是 1999 年的 IMO 金牌(他本来也是 1998 年中国国家队的队员).

$\zeta(2k)=\sum_{n=1}^\infty\frac1{n^{2k}}=(-1)^{k+1}\frac{(2\pi)^{2k}B_{2k}}{2(2k)!}$

10 日下午 4 点的第二场, 依旧在镜春园82号甲乙丙楼的中心报告厅. 不过, 15 日的一场会在镜春园 78 号院的 77201 室, 16:30 开始.

15 日下午 4:30 的最后一场, 要深入一点. 田刚坐在教室最后一排, 刘若川, 许晨阳坐在教室左边的走廊.张大师谈到有 Goldston, Pintz and Yildirim 的工作, 说他自己最大的贡献是把 $$c$$ 改进为 $$\dfrac14+\dfrac1{1168}$$.

7月1日, 北京大学2014年本科生毕业典礼暨学位授予仪式在邱德拔体育馆举行. 张益唐作为校友代表发言.

## 张大师的演讲全文

###### 注释
1. 本文节选自北京大学新闻网 7 月 2 日新闻 “北大举行2014年本科生毕业典礼暨学位授予仪式”.
2. 7 月 23 日补充的张的演讲全文, 最早可能出现在人人网, 也可能是豆瓣. 这里根据视频对错处做了一些修正.