http://www.math.snu.ac.kr/board/files/attach/images/698/d7f811aae9dfd8ef6b3d16c547a28844.png
seminars
Date Apr 26, 2021
Speaker Jan Vonk
Dept. Leiden University
Room 선택
Time 15:30-16:30

※ Zoom Meeting ID : 817 7139 5843
   Passcode : 165930


Singular moduli are special values of the j-function at imaginary quadratic arguments. They play a central role in CM theory and have close connections with the class field theory of imaginary quadratic fields. With the advent of the work of Gross and Zagier, investigations of the prime factorisation of differences of singular moduli have led to a renaissance of the subject, and paved the way for their celebrated work on Heegner points on elliptic curves.

In this series of talks, we will explore what happens when we replace the imaginary quadratic fields in CM theory with real quadratic fields, and propose a framework for a conjectural 'RM theory', based on the notion of rigid meromorphic cocycles, introduced in joint work with Henri Darmon. We will start with a discussion of classical CM theory and the work of Gross and Zagier, particularly the analytic arguments based on the diagonal restrictions of a family of Eisenstein series studied by Hecke in the early 20th century. We will then discuss the theory of RM singular moduli, as well as the extent to which arguments based on analytic families of modular forms can be fruitful. In particular, I will discuss recent progress obtained in various joint works with Henri Darmon and Alice Pozzi.

Subject
May 28, 2021  09:00-11:00  Nonuniqueness in law for stochastic hypodissipative NSE Marco Rehmeier  27-220 
May 28, 2021  14:00-16:00  Topological entropy 0 and conformal dimension 1 in complex dynamics 박인성  27-220 
May 28, 2021  15:30-16:30  RAMANUJAN CONTINUED FRACTIONS OF ORDER SIXTEEN 박윤경  선택 
May 28, 2021  10:00-12:00  Introduction to derived categories 조창연  선택 
May 27, 2021  17:00-18:00  Robustness of deep neural networks to adversarial attack: from heuristic methods to certified methods 이성윤  27-116 
May 26, 2021  10:00-11:00  Characterizations of the plane and the catenoid as free boundary minimal surfaces 연응범  27-220 
May 26, 2021  11:00-12:00  Uniqueness and existence results of minimal surfaces in four-dimensional Euclidean space 이재훈  27-220 
May 26, 2021  15:00-16:30  Lorentzian Polynomials (우리말 강연) 허준이  129-101 
May 26, 2021  16:00-17:30  Approximation numbers, entropy numbers and their applications to noncommutative tori 이기현  선택 
May 25, 2021  16:00-17:00  Estimates for Spectral projectors on the torus 권예현  선택 
May 24, 2021  15:00-16:00  Non-linear operators on fractal domains and homogenization for fully non-linear parabolic equations 박성하  선택 
May 24, 2021  11:00-12:00  Iwasawa Theory of Elliptic Curves Debanjana Kundu  선택 
May 21, 2021  14:00-16:00  Introduction to derived categories 조창연  선택 
May 18, 2021  16:40-17:10  A brief introduction to Lagrangian Floer theory 배한울  129-101 
May 18, 2021  16:00-16:30  Transverse foliations in Hamiltonian systems 김성찬  129-101 
May 18, 2021  16:00-17:00  What is abstract harmonic analysis? 이훈희  선택 
May 17, 2021  15:30-16:30  Local Shimura varieties and their cohomology I, II, III David Hansen  선택 
May 14, 2021  15:30-16:30  On some results about non-holomorphic Jacobi forms 진석호  선택 
May 14, 2021  13:00-13:30  A survey of consensus-based optimization 박소영  27-220 
May 14, 2021  14:30-15:30  On the emerging asymptotic patterns of the Winfree model 강명주  27-220