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批量新增 2 个讲座 - 2026-05-28 10:43 (#332) 

* Add 2026-05-28T16-00-00_蔡天新.md

* Add 2026-05-28T16-30-00_Joshua_Zahl.md

* Update README.md (TOC)

* Update talks-wx.md
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docs/study/talks/2026-05-28T16-00-00_蔡天新.md

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# 《科学大讲堂 第242期》蔡天新 求是特聘教授：许宝騄：从燕京到燕京

# 《科学大讲堂系列 第242期》蔡天新 求是特聘教授：许宝騄：从燕京到燕京



> 以下内容根据公开信息整理，并经大模型处理生成，可能存在疏漏或误差，请以实际信息为准。
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Dr. Cai Tianxin is a professor of mathematics at Zhejiang University, as well as a poet and essayist. He is the author of over 40 books of literature, academic and popular science works. His work has been translated and published into more than 20 languages, including 9 books in English, among them 3 are treatises on number theory. He is a winner of the 2017 National Award of Science and Technology (Beijing) for his book Mathematical Legends, the 2024 National Award for Science Popularization and several international awards for poetry.



## 讲座简介

Bao-Lu Hsu (Xu Baolu) is the Chinese mathematician who first achieved worldwide influence in the fields of probability theory and mathematical statistics. He has made outstanding contributions in statistical inference, multivariate statistical analysis, and probability theory. Along with Hua Luogeng and Shiing-Shen Chern, he is known as one of the "Three Heroes of Southwest Associated University". He was one of the first five mathematics academicians of Academia Sinica and a leader in the mathematics discipline of Peking University. He has trained a large number of outstanding talents in the fields of probability theory and statistics for China.



The lecture will explore the life story and scholarly contributions of Bao-Lu Hsu. He comes from a family, elegant and introverted, and is skilled in Kun opera performance. Professor Cai Tianxin once wrote Mr. Xu's long essay, which was later adapted into a picture book. He comes from Mr. Xu's hometown of Hangzhou and has visited Mr. Xu's mother's hometown of Xinjian in Jiangxi.

Bao-Lu Hsu (Xu Baolu) is the Chinese mathematician who first achieved worldwide influence in the fields of probability theory and mathematical statistics. He has made outstanding contributions in statistical inference, multivariate statistical analysis, and probability theory. Along with Hua Luogeng and Shiing-Shen Chern, he is known as one of the "Three Heroes of Southwest Associated University". He was one of the first five mathematics academicians of Academia Sinica and a leader in the mathematics discipline of Peking University. He has trained a large number of outstanding talents in the fields of probability theory and statistics for China. The lecture will explore the life story and scholarly contributions of Bao-Lu Hsu. He comes from a family, elegant and introverted, and is skilled in Kun opera performance. Professor Cai Tianxin once wrote Mr. Xu's long essay, which was later adapted into a picture book. He comes from Mr. Xu's hometown of Hangzhou and has visited Mr. Xu's mother's hometown of Xinjian in Jiangxi.



## 海报链接

![](https://gtimg.liziwl.cn/post-img/2026-05-28T16-00-00_%E8%94%A1%E5%A4%A9%E6%96%B0.jpg)
 
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docs/study/talks/2026-05-28T16-30-00_Joshua_Zahl.md

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# 《科学大讲堂系列 第243期》Chair Prof. Joshua Zahl：贝西科维奇压缩现象及挂谷集合猜想

# 《科学大讲堂 第243期》Chair Prof. Joshua Zahl：贝西科维奇压缩现象及挂谷集合猜想



> 以下内容根据公开信息整理，并经大模型处理生成，可能存在疏漏或误差，请以实际信息为准。
@@ -13,6 +13,7 @@ Prof. Joshua Zahl is a chair professor at the Chern Institute of Mathematics, Na 


## 讲座简介

In 1919, Besicovitch constructed a compact set in the plane with Lebesgue measure 0 that contains a unit line segment pointing in every direction. Such objects are now called measure 0 Besicovitch sets (aka Kakeya sets). By replacing a measure zero Besicovitch set by its \delta-thickening, one obtains a collection of 1 x \delta rectangles pointing in different directions, the sum of whose areas is 1, but whose union has very small volume. The existence of such collections of rectangles is called the Besicovitch compression phenomenon.



The Kakeya set conjecture is a quantitative statement controlling the strength of the Besicovitch compression phenomenon. In this talk, I will discuss connections between the Besicovitch compression phenomenon, the Kakeya set conjecture, and questions in harmonic analysis and PDE.



## 海报链接

docs/study/talks/README.md

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- 12:30 - [柳青 任莉：写作不是玄学，是技术——NEWCCS写作大赛 & 四六级写作提分讲座](2026-05-28T12-30-00_柳青_任莉.md)

- 15:00 - [颜辉 教授：迈向基于冷原子的量子网络](2026-05-28T15-00-00_颜辉.md)

- 16:00 - [《科学大讲堂 第242期》蔡天新 求是特聘教授：许宝騄：从燕京到燕京](2026-05-28T16-00-00_蔡天新.md)

- 16:30 - [《科学大讲堂系列 第243期》Chair Prof. Joshua Zahl：贝西科维奇压缩现象及挂谷集合猜想](2026-05-28T16-30-00_Joshua_Zahl.md)

- 16:00 - [《科学大讲堂系列 第242期》蔡天新 求是特聘教授：许宝騄：从燕京到燕京](2026-05-28T16-00-00_蔡天新.md)

- 16:30 - [《科学大讲堂 第243期》Chair Prof. Joshua Zahl：贝西科维奇压缩现象及挂谷集合猜想](2026-05-28T16-30-00_Joshua_Zahl.md)



## 2026-05-26 周二

docs/study/talks/talks-wx.md

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- 12:30 - [柳青 任莉：写作不是玄学，是技术——NEWCCS写作大赛 & 四六级写作提分讲座](2026-05-28T12-30-00_柳青_任莉.md)

- 15:00 - [颜辉 教授：迈向基于冷原子的量子网络](2026-05-28T15-00-00_颜辉.md)

- 16:00 - [《科学大讲堂 第242期》蔡天新 求是特聘教授：许宝騄：从燕京到燕京](2026-05-28T16-00-00_蔡天新.md)

- 16:30 - [《科学大讲堂系列 第243期》Chair Prof. Joshua Zahl：贝西科维奇压缩现象及挂谷集合猜想](2026-05-28T16-30-00_Joshua_Zahl.md)

- 16:00 - [《科学大讲堂系列 第242期》蔡天新 求是特聘教授：许宝騄：从燕京到燕京](2026-05-28T16-00-00_蔡天新.md)

- 16:30 - [《科学大讲堂 第243期》Chair Prof. Joshua Zahl：贝西科维奇压缩现象及挂谷集合猜想](2026-05-28T16-30-00_Joshua_Zahl.md)



## 2026-05-26 周二

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