Description

This Reading Seminar will focus on the groundbreaking work of Deng, Hani, and Ma regarding the longtime derivation of the Boltzmann equation in the Boltzmann-Grad limit. The seminar is designed to provide a comprehensive exploration of the mathematical techniques and proofs developed by Deng, Hani, and Ma. Participants will benefit from detailed explanations and guided readings, gradually building expertise in this challenging and significant area of kinetic theory.

This Reading Seminar will start from June 27, 2025. Detailed information about the seminar will be updated on the website as they become available.

Eighth Meeting Information

Morning Session: 2-hour talk by Yu Deng
Time: 10:00 - 12:00 (GMT+08:00), August 22, 2025
Format: On-site talk
Location: Room 77201, Jingchunyuan 78, BICMR, Peking University
Title: Long time derivation of Boltzmann’s equation
Abstract: We review recent work (joint with Zaher Hani and Xiao Ma) that justifies the Boltzmann equation from hard sphere dynamics, for the full lifespan of its solution. The proof consists of two parts: a cumulant expansion formula in terms of molecules, and thr analysis of molecules via carefully designed cutting algorithm. We will briefly discuss each part, and get to more details if time permits.

Afternoon Session:

Abstract: INTRODUCTION TO TALKS AT THE DENG-HANI-MA READING SEMINAR
Speaker: Yulong Wu (School of Mathematics and Statistics, Wuhan University)
Time: 14:00 - 17:00 (GMT+08:00), August 22, 2025
Format: Hybrid (offline and online)
Venue:  Room 78201, Jingchunyuan 78, BICMR, Peking University
Join: https://meeting.tencent.com/dm/gPy6yTpIMKQE
Meeting ID: 568-432-267

Seventh Meeting Information

Abstract: INTRODUCTION TO TALKS AT THE DENG-HANI-MA READING SEMINAR
Speaker: Yulong Wu (School of Mathematics and Statistics, Wuhan University)
Time: 14:00 - 17:00 (GMT+08:00), August 15, 2025
Format: Hybrid (offline and online)
Venue:  Room 78201, Jingchunyuan 78, BICMR, Peking University
Join: https://meeting.tencent.com/dm/Kqm5vFxn4qaC
Meeting ID: 578-191-522

Sixth Meeting Information

Abstract: Talk Information for the Reading Seminar on Deng-Hani-Ma
Speaker: Pengzhi Xie (School of Mathematical Sciences, Fudan University)
Time: 13:30 - 17:30 (GMT+08:00), August 4, 2025
Format: Hybrid (offline and online)
Venue:  Room 78201, Jingchunyuan 78, BICMR, Peking University
Join: https://meeting.tencent.com/dm/DCHmrYSeeff3
Meeting ID: 688-110-483

Fifth Meeting Information

Abstract: Talk Information for the Reading Seminar on Deng-Hani-Ma
Speaker: Pengzhi Xie (School of Mathematical Sciences, Fudan University)
Time: 14:30 - 17:30 (GMT+08:00), August 1, 2025
Format: Hybrid (offline and online)
Venue:  Room 78201, Jingchunyuan 78, BICMR, Peking University
Join: https://meeting.tencent.com/dm/ixKz4HSLSQSH
Meeting ID: 370-406-442

Fourth Meeting Information

Abstract: Talk Information for the Reading Seminar on Deng-Hani-Ma
Speaker: Pengzhi Xie (School of Mathematical Sciences, Fudan University)
Time: 14:30 - 17:30 (GMT+08:00), July 25, 2025
Format: Hybrid (offline and online)
Venue:  Room 78201, Jingchunyuan 78, BICMR, Peking University
Join: https://meeting.tencent.com/dm/EhnnO4C9aYAc
Meeting ID: 251-938-014

Third Meeting Information

Abstract: Talk Information for the Reading Seminar on Deng-Hani-Ma
Speaker: Pengzhi Xie (School of Mathematical Sciences, Fudan University)
Time: 14:30 - 17:30 (GMT+08:00), July 18, 2025
Format: Hybrid (offline and online)
Venue:  Room 78201, Jingchunyuan 78, BICMR, Peking University
Join: https://meeting.tencent.com/dm/4yjTiygCt7mO
Meeting ID: 830-434-69

Second Meeting Information

Abstract: Summary for Talks at the Reading Seminar on Deng-Hani-Ma
Speaker: Chenjiayue Qi (Institut des Hautes ´Etudes Scientifiques (IHES), Universit´e Paris-Saclay)
Time: 16:00 - 18:00 (GMT+08:00), July 7, 2025
Format: Online via Tencent Meeting
Join: https://meeting.tencent.com/dm/q92Cyr3bcYBo
Meeting ID: 400-427-148

First Meeting Information

Abstract: Summary for Talks at the Reading Seminar on Deng-Hani-Ma
Speaker: Chenjiayue Qi (Institut des Hautes ´Etudes Scientifiques (IHES), Universit´e Paris-Saclay)
Time: 16:00 - 18:00 (GMT+08:00), June 27, 2025
Format: Online via Tencent Meeting
Join: https://meeting.tencent.com/dm/FtCzlzDtObml
Meeting ID: 176-821-144