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Picture by Jorge Cham,

the creator of the PHD comics.

Matti Lassas

Department of Mathematics and Statistics
University of Helsinki


  • Our collaboration paloDEx has launched a three dimensional X-ray imaging system based on Statistical Inversion (SI). Have a look on its demo on the KaVo Imaging web pages.
Project funded by European Research Council (ERC)

I am the principal investigator of the ERC Advanced grant project Geometric Methods in Inverse Problems for Partial Differential Equations 2023-2028.

Centre of Excellence

I am director of the Finnish Centre of Excellence in Inverse Modelling and Imaging. The status of Centre of Excellence is granted by Research Councli of Finland for the period 2018-2025. This centre continues the Finnish Centre of Excellence in Inverse Problems Research in 2006-2011 and 2012-2017.


I am editor of journals SIAM Journal on Applied Mathematics, Communications on Analysis and Computation, Research in Mathematical Sciences, and Inverse Problems and Imaging. Submissions to these journals can be done via the web-pages of the journals.

Research and vita

Lecture notes and slides of talks

On theses and graduate studies

  • If you need a topic of a master theses, please contact me by e-mail.
  • If you are interested to start graduate studies on inverse problems, please contact us by e-mail.

Research seminars

Links to Inverse problems

Other links

Contact information

Post address:
Department of Mathematics and Statistics
P.O. Box 68 (Gustaf Hällströmin katu 2b)
FI-00014 University of Helsinki

Phone: +358 50 5674417
Mobile phone: +358 50 5674417

E-mail: Matti.Lassasathelsinki.fi

Matti Lassas <Matti.Lassasathelsinki.fi>

June 23, 2020