IASM Bayberries: Red Again

2025-06-13

Deep autumn chill after rain

2025-06-12

IASM External View

2025-06-12

The Math Garden

2025-06-12

IASM-BIRS WORKSHOP 25W5344 - S...

2025-06-06

 Workshop Title: IASM-BIRS WORKSHOP 25W5344 - Structure Preserving Schemes for Complex Nonlinear SystemTime: 6.1-6.6Venue: Academic Island

Seminar by Yu Luo: A new proof...

2025-05-14

 Time: 16:00-17:00, Wednesday, May 14 Title: A new proof of the arithmetic Siegel–Weil formulaSpeaker: Yu Luo 罗渝 (University of Wisconsin–Madison)Abstract: The arithmetic Siegel–Weil formula establishes a profound connection between intersection numbers in Shimura varieties and the Fourier coefficients of central derivatives of Eisenstein series. This result was proven by C. Li and W. Zhang in 2021 using local methods. In this talk, I will present a new proof of the formula that uses the local-global compatibility and the modularity of generating series of special divisors.

Seminar by Shengkai Mao: Compa...

2025-04-30

 Time: 16:00-17:00, Wednesday, April 30  Title: Compactifications of subschemes of integral models of Hodge-type Shimura varietiesSpeaker: Shengkai Mao 毛盛开 (Chinese Academy of Sciences)Abstract: The special fiber of the integral model of a Hodge-type Shimura variety with parahoric level structure admits several natural stratifications that reflect the geometry of the associated universal abelian scheme. In this talk, I will present some new results on the compactification theory of such integral models constructed by Keerthi Madapusi, and describe the boundary behavior of various strata, including central leaves, Newton strata, Kottwitz–Rapoport strata, and Ekedahl–Kottwitz–Oort–Rapoport strata. This latter work builds on and generalizes some work by Kai-Wen Lan and Benoît Stroh.

Seminar by Michael Rapoport: I...

2025-04-25

 Time: 11:00-12:00, Friday, April 25Title: Integral Hecke correspondences and what I learned from studying themSpeaker: Michael Rapoport (Universität Bonn)Abstract: I will explain more details of our approach to the problem raised in the colloquium talk. (FYI) Colloquium abstract: Shimura varieties are algebraic varieties over a number field. A characteristic feature of them is the abundance of self-correspondences, given by the so-called Hecke correspondences. In the theory of Shimura varieties the construction of integral models has seen a lot of activities over the years. However, the construction of integral models of Hecke correspondences is still in its infancy. I will explain the problem and some recent progress (joint work with Ulrich Gortz and Xuhua He).

Professor Liu Yifeng has online published a research paper by Inventiones mathematicae

2024-02-23

A p-adic arithmetic inner product formulaInventiones mathematicae volume 236, pages 219–3751 (2024)  by  Daniel Disegni & Yifeng LiuAbstractFix a prime number p and l...

Professor Sun Song Joined IASM as the Fifth Permanent Member

2024-01-01

Professor Sun Song joined IASM as the fifth permanent member in January, 2024. Professor Sun Song, Chinese, was born in February 1987 in Anqing, Anhui Province. He received his bachelor'...

Prof. Gang Bao of Zhejiang University Selected as an academician of the Chinese Academy of Sciences

2023-11-22

On November 22, the Chinese Academy of Sciences (CAS) released the list of 2023 new members, and Professor Bao Gang of Zhejiang University was elected as CAS member. Congratulations!Bao Gang, born in ...

Prof. Binyong Sun Selected as one of the first "New Cornerstone Investigators"

2023-01-13

 On January 13th, the New Cornerstone Investigator Program announced the list of the first grantees; 58 scientists from Mathematical and Physical Sciences and Biological and Medical Sciences beca...

Prof. Bao Gang and Prof. Sun Binyong to Speak at ICM 2022

2022-04-14

The International Congress of Mathematicians 2022, rescheduled as a fully virtual event, will take place over 6–14 July 2022. Virtual ICM 2022 has just announced the plenary speakers and schedule. We ...

The IASM Post Doctoral Fellow Dr. Shu Cheng has online published a research paper by Advances in Mathematics

2022-04-01

The character table of GLn(Fq)⋊<σ>Volume 403,  by Cheng ShuAbstractWe compute the character table of GLn(Fq)⋊<σ>, σ being an order 2 exterior automorphism....

Professor Liu Yifeng has online published a research paper by Inventiones mathematicae

2022-01-21

On the Beilinson–Bloch–Kato conjecture for Rankin–Selberg motivesInventiones mathematicae volume 228, pages107–375 (2022)  by Yifeng Liu, Yichao Tian, Liang Xiao, Wei Zhang & Xinwen...

Prof. Ruan Yongbin Elected as CAS Member in 2021

2021-12-01

On November 18, the Chinese Academy of Sciences (CAS) unveiled the list of this year’s new members. Prof. Ruan Yongbin at the Institute for Advanced Study in Mathematics (IASM) was elected as CAS mem...

Professor Liu Yifeng has online published a research paper by Annals of Mathematics

2021-11-02

Chow groups and LL-derivatives of automorphic motives for unitary groupsPages 817-901 from Volume 194 (2021), Issue 3 by Chao Li, Yifeng LiuAbstractIn this article, we study the Chow gr...