# Postdoctoral and PhD student positions in inverse problems

## Call for applications

Date of announcement:

Deadline for applications:

Number of positions:

Supervisors:

January 10, 2011

February 6, 2011

4-8, of which at least two (2) are postdoctoral positions and at least two (2) are PhD student positions

Prof. Lassi Päivärinta, Prof. Matti Lassas, Dr. Mikko Salo

The Inverse problems group at the Department of Mathematics and Statistics, University of Helsinki, will hire new PhD students and postdoctoral researchers. We invite prospective candidates to apply for these positions, which will involve research in one or more of the following areas:

- Inverse problems and spectral theory for partial differential equations
- Geometric inverse problems
- Stochastic inverse problems
- Regularization methods in inverse problems, in particular sparse reconstructions

We plan to fill in 4-8 positions, of which at least two (2) are at the postdoctoral level and at least two (2) at the PhD student level. Prospective PhD students are expected to have a MSc degree or equivalent, and prospective postdoctoral researchers are expected to have a PhD degree or equivalent. Persons graduating in the near future are also encouraged to apply.

## Application process

The application with the following documents should be submitted electronically to Mikko Salo (). The deadline for applications is February 6, 2011.

- Cover letter indicating which research area(s) are addressed
- Short curriculum vitae, including a list of publications if any
- Scanned copies of relevant diplomas and transcripts of academic records. Translations of these documents in English may also be attached.
- Names and contact information of two references

All enquiries related to the positions:

The salary for PhD students will be placed on levels 1-4 (typical monthly salary between 2000 and 2800 euros) of the job demands level chart for teaching and research personnel in the Salary System for Finnish Universities. The duration of the PhD student positions can be up to four years. The salary for postdoctoral researchers will be placed on level 5 (typical monthly salary 3200 euros), the duration of the positions being up to three years. The starting times for the positions are negotiable, and the style and contribution of the projects can be adjusted somewhat to match the applicants' strengths. Prof. Lassi Päivärinta, Prof. Matti Lassas, and Dr. Mikko Salo will act as supervisors for the projects (each project will have one or more supervisors).

## Description of research environment

The PhD student and postdoctoral positions will be placed in the Inverse Problems Group at the Department of Mathematics and Statistics of the University of Helsinki. The group is part of the Finnish Centre of Excellence in Inverse Problems Research (status granted by the Academy of Finland), and has an active role in the Finnish Inverse Problems Society. The group has made fundamental contributions in both theoretical and computational inverse problems, and it currently consists of Profs. Lassi Päivärinta (leader of the Centre of Excellence), Matti Lassas and Samuli Siltanen, Dr. Mikko Salo and four other senior or postdoctoral researchers, and eight PhD students.

The Department of Mathematics and Statistics of the University of Helsinki is the leading unit of mathematical sciences in Finland. The department staff numbers over 170, with more than 20 professors. The research carried out at the department is of the highest international standard. The department houses two Centres of Excellence appointed by the Academy of Finland, one Academy Professor and one Finland Distinguished Professor (FiDiPro). The department also has two research projects funded by the European Research Council (ERC). The major lines of research are, inter alia, analysis, mathematical physics, inverse problems, mathematical biology, mathematical logic and statistics.

The University of Helsinki is one of the leading multidisciplinary research universities in the world and the leading university in Finland. The university, with a staff of over 8,000, operates on four campuses in. There are 35,000 students, and a further 30,000 participate in adult education. The University annual budget is over 600 million euro. Founded in 1640, the University of Helsinki wants to strengthen its position among the world's leading multidisciplinary research universities and to actively promote the well-being of humanity and a fair society.