## Douglas Ulmer
Professor and Chair |

## News

(Under reconstruction)

## Expository lectures

These slides from a 2010 conference in honor of my teacher Dick Gross give an overview of what I have been doing for the last few years. Several of the problems mentioned in them have been resolved.

I gave a 5-lecture course at the Park City Math Institute in summer 2009 on “Elliptic curves over function fields.” Here are the lecture notes.

In February of 2010 I gave a 12-hour course at the CRM in Barcelona on “Curves and Jacobians over function fields.” This was more advanced than Park City in that I discussed curves of higher genus and function fields over arbitrary (as opposed to finite) fields. The notes are under review and comments would be most welcome.

## Research

Two recent papers:

- In Arithmetic of Jacobians in Artin-Schreier extensions, Rachel Pries and I study Artin-Schreier analogues of results proven in the Kummer tower in my article 2007b, Lisa Berger's thesis, and 2013a.
- In Explicit points on the Legendre curve II, Ricardo Conceição, Chris Hall and I study points on the Legendre curve over extensions
**F**_{q}(t^{1/d}) of**F**_{p}(t) and show that there are points of infinite order for many values of d. One might expect that there are such points only when d divides p^{f}+1 for some f, but it turns out that there are many more interesting values of d.

## Students

I have projects for students at several levels. Here is an undergraduate research project (which is not as scary as it might seem at first ...). I'd be happy to talk with graduate students about projects in number theory and algebraic geometry ranging from a quick MS with good prospects for a paper to more substantial PhD projects.

## Contact

My current office hours are Mondays 2:00 - 3:00 and Tuesdays 3:00 - 4:00. Setting up an appointment by e-mail is the best way to see me. My assistant Sharon McDowell also has my schedule.

## Etc.

My medium length CV.

email: ulmer@math.gatech.edu | phone: 404-894-2747 | office: Skiles 118B |