Spring lectures in Algebraic Geometry: Zhiwei Yun

March 21 - 24, 2017, at the University of Michigan, Ann Arbor


We are happy to announce that Zhiwei Yun will be giving a series of lectures in algebraic geometry this spring. The title and abstract for the entire series is:


Geometry in orbital integrals and beyond:

The Gross-Zagier formula is an identity between the first derivative of the L-function of an elliptic curve at s=1 and an intersection number. In joint work with Wei Zhang, we give a generalization of the Gross-Zagier formula to higher derivatives of the L-function for elliptic curves over function fields. In this series of lectures, I will discuss some geometric ideas involved in the proof of this formula which originated from the study of orbital integrals.

The series will begin with a pretalk: Shuyang Cheng will give an introduction to the geometry of orbital integrals on Friday, March 17 between 3:00pm and 5:00pm in 1096 East Hall.

The schedule for this lecture series, as well as titles and abstracts for individual talks, is displayed below. Note that Zhiwei's first lecture will be a colloquium talk intended for a general mathematical audience. All lectures will take place in East Hall.


Day Time Room Title
Tuesday, March 21

(Colloquium talk)

3:10 - 4:00 1360 EH I will talk about my joint work with Wei Zhang on generalizing the Gross-Zagier and Waldspurger formulae to higher derivatives of L-functions for function fields.
Wednesday, March 22 4:10 - 5:30 4096 EH Orbital integrals are important quantities in the theory of automorphic forms, and they usually appear when one applies trace formula. I will review relevant background of the subject and mention some examples.
Thursday, March 23 4:10 - 5:30 1866 EH I will talk in more details about the geometry of orbital integrals that appear in the theorem mentioned in Lecture 1.
Friday, March 24 4:10 - 5:30 2866 EH In the last lecture, I will talk about some ingredients in the proof of the theorem beyond orbital integrals. I will also mention our recent work with Wei Zhang which extends our previous theorem by allowing ramifications.

This is our fifteenth Spring Lecture Series in Algebraic Geometry. Previous speakers have been (in reverse chronological order): Arnaud Beauville, Jacob Lurie, Peter Scholze, Manjul Bhargava, Richard Thomas, Bjorn Poonen, Daniel Huybrechts, Marc Levine, Mihnea Popa and Giuseppe Pareschi, Ravi Vakil, Shigeru Mukai, Paul Biran, and Burt Totaro.