PhD position

The Faculty of Science and the Mathematical Institute invites applications for a four-year PhD position in Algebraic and Arithmetic Geometry (1.0 fte)

Key responsibilities and Project description

The project will be supervised by Dr. David Holmes. Possible subject areas include
- Degenerations of curves and abelian varieties (Neron models, semistable models, theoretical and algorithmic aspects)
- Intersection theory on moduli spaces and Gromov-Witten theory (especially logarithmic, or applied to stacks, or in positive characteristic)
- Arakelov theory (height functions, height jumping, logarithmic approaches, theoretical and algorithmic aspects)

There is a large research community including many PhD students in the Netherlands (and in particular in Leiden) working on similar projects. PhD students in Leiden organise regular seminars; in the last 12 months this has included the Logarithmic Geometery Seminar, Neron Models Seminar, seminar on Obstructions to local-global principles and currently a seminar on Tropical Geometry.

Regularly, joint nationwide seminars are organised, such as the Intercity Number Theory Seminar, Intercity Geometry Seminar, DIAMANT Symposium and GQT Symposium.

The PhD position is financed by a grant from the Dutch science foundation NWO.

Selection Criteria

A MSc degree;
A special focus on algebraic of arithmetic geometry;
Excellent grades and good reference letters.

Research at our faculty

The Mathematical Institute is responsible for the mathematical research and education within the Faculty of Science at Leiden. Currently, The MI consists of about 120 staff members (including PHD candidates) and about 350 bachelor and master students, from all over the world. Life at the MI happens in a mixture of Dutch and English; you are not expected to know the former upon arriving, but most students enjoy learning a bit while they are here, and the MI provides excellent free courses.

For more information about the Mathematics Institute, see

For more information about the Faculty of Science, see

Terms and conditions

We offer a one-year term position with the possibility of renewal based on need, funding and performance. Salary range from E2,222 to E2,840 gross per month (pay scale P, in accordance with the Collective Labour Agreement for Dutch Universities). The position is to begin by the end of 2018, probably beginning in September.

Leiden University offers an attractive benefits package with additional holiday (8%) and end-of-year bonuses (8.3 %), training and career development and sabbatical leave. Our individual choices model gives you some freedom to assemble your own set of terms and conditions. Candidates from outside the Netherlands may be eligible for a substantial tax break. Additional budget allows for research visits abroad and attendance of international conferences. More at


Leiden University is strongly committed to diversity within its community and especially welcomes applications from members of underrepresented groups.


Enquiries about the position can be made to dr. David Holmes, Assistant Professor in Mathematics, email


Applications should be sent by email to, with subject line

PhD application 2018 YOUR NAME

by the deadline of 1am on 3 April 2018. Applications should consist of:
- CV (including publications if any, and (expected) date of graduation);
- letter of motivation (at most 1 side), including the topic of your master's thesis, and what area you would like to work in;
- contact details of exactly 2 referees;
- transcripts of your bachelor and master studies;
- copy of your Master's thesis if available. If not yet available, a copy of your Bachelor's thesis.

Please combine all these into a single pdf (in the order given above), and attach it to your email.