My name is JOERG JAHNEL. I worked for many years at the Mathematical Institute of the Goettingen Georg-August-University.

Meanwhile, I am less often at Goettingen, as I moved to the University of Siegen. In a semester in between, I substituted a professorship at the Hamburg Helmut-Schmidt-University.

For a certain time, my research takes place within the limits of

Many of my research projects were joint work with Andreas-Stephan Elsenhans from Würzburg.

I am engaged per h.c. in the education of gifted students. I am member of the MO e.V. and the MO-Ni e.V. I was one of the organizers of the Mathematical Olympiad in Lower Saxony. Two times, I was the Team Leader of the Göttingen Team at the IMC in Blagoevgrad/Bulgaria.

As a school student, I took part excessively in the Mathematical Olympiad, myself. My scores at the IMO meanwhile found their way to the internet.

Office Hours

The by far most efficient way to reach me is to send me an email. If you plan to call me by telephone, be warned that this may become a longsome undertaking.

My current tasks

At Göttingen, there are non left. At last, I was an associate of the Gausz Laboratory for Algorithmic Number Theory.

My CV (not really in a conventional form)

I do not come from Goettingen, originally. That I have the opportunity to work here, is essentially the result of Prof. Stuhler's activity. In the time before (and in between) I worked at other nice places, namely at

During the time, I received my salary from several sources. First, from some German state that does not exist anymore, later from the lands of

Further, I had scholarships from the

There were some other places that I could visit for short periods, only. Some of them were

Very shortly, just for one talk, I was at

While I sat at one of my various little desks, I wrote a number of papers which can be seen here.

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 last time: 5 August 2022      responsible for this page: Joerg Jahnel 
There is a version of this page in German.
To my papers.
To my ancesty.
Some links to the world of Internet.