Iwasawa Theory
Taipei Summer School
June 25 Wednesday - June 27 Friday, 2025
R. 202, Astronomy-Mathematics Building, National Taiwan University.
R. 202, Astronomy-Mathematics Building, National Taiwan University.
Iwasawa theory is a branch of number theory that investigates the intricate relationship between arithmetic objects and p-adic analytic functions along an infinite tower of global fields. Originally developed to study the class groups of number fields, the theory has significantly evolved over recent decades and now encompasses profound connections to Galois representations arising from elliptic curves, modular forms, and, more broadly, motives. Iwasawa theory plays a pivotal role in modern arithmetic geometry, particularly in understanding the special values of L-functions.
The Iwasawa Theory Taipei Summer School, to be held between 25th to 27th June, 2025 (a week before Iwasawa 2025), will consist of four lecture series by number theorists working in the field of Iwasawa theory. It is designed as an introduction to some foundational aspects of Iwasawa theory and some of its lines of current research.
The summer school will take place in the Astronomy-Mathematics Building, National Taiwan University, and all lectures will be held in Room 202.
Shinichi Kobayashi, Kyushu University,
Zheng Liu, UC Santa Barbara,
Chan-Ho Kim, Jeonbuk National University,
Ming-Lun Hsieh , National Taiwan University and NCTS
Local organizers
Ming-Lun Hsieh (National Taiwan University and NCTS),
Kwok-Wing Tsoi (National Taiwan University).
Sponsored by the National Center for Theoretical Sciences (Math Division),
Chee-Chun Leung Cosmology Hall, No. 1, Sec. 4, Roosevelt Rd., Taipei City 106, Taiwan.
臺北市羅斯福路四段1號臺灣大學梁次震宇宙館
Shinichi Kobayashi, Kyushu University.
p-adic Gross-Zagier formula
The p-adic Gross-Zagier formula relates the derivative of a p-adic L-function to the p-adic height of an arithmetic cycle. Currently, several types of p-adic Gross-Zagier formulas exist in various settings; however, this lecture focuses on the most basic p-adic Gross-Zagier formula proved by Perrin-Riou. Many important ideas useful for subsequent generalizations are already contained in its proof.
Zheng Liu, UC Santa Barbara,
p-adic L-functions
The course will provide an introduction to p-adic L-functions, which are p-adic avatars of complex L-functions. They arise from p-adic congruences among special values of complex L-functions. We will illustrate the constructions and applications of p-adic L-functions through some examples (Kubota--Leopoldt p-adic L-functions, Rankin-Selberg p-adic L-functions, symmetric square p-adic L-functions, p-adic L-functions for GSp_4×GL_2).
Chan-Ho Kim, Jeonbuk National University.
Kato's Euler systems and their applications
The goal of this lecture series is to explain the notion of Kato's Euler systems, the methodology of Kolyvagin systems, and how they are used in the arithmetic of elliptic curves.
Some numerical examples will be computed in the end.
Ming-Lun Hsieh, National Taiwan University and NCTS
Modular construction of Selmer classes
Congruence between modular forms is one of the most effective methods to construct Selmer classes.
In these lectures, I will explain examples from Eisenstein congruence on GL(2) and endoscopic congruence on GSp(4).
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