The 29th International Workshop on Matrices and Statistics, IWMS-2023, was held August 21-23 2023 at Linköping University, Sweden.

Participants at the IWMS conference 2023. Photo credit Karin Johansson The purpose of the workshop was to stimulate research and, in an informal setting, foster the interaction of researchers using matrices in different areas of mathematics especially with a focus on statistics. The workshop provided a forum through which mathematicians and statisticians may be better informed of the latest developments and newest techniques in linear algebra and matrix theory and may exchange ideas with researchers from a wide variety of countries.

As well as range of invited speakers we strengthened the interactions between participants by organizing several special sessions in various of areas. We also invited participants from all areas of mathematics to submit their research articles in the sessions of contributory talks.

The theme of the workshop targeted on the theory and applications using matrices in different branches of science like: big data analytics, machine learning, computer and information science, biology, physics, economics, engineering, mathematics and statistics.

Invited speakers

  • Göran Bergqvist (Linköping University) – On tensor decompositions and rank

  • Taras Bodnar (Stockholm University) –  Reviving pseudo-inverses: Asymptotic properties of large dimensional Moore-Penrose and ridge-type inverses with applications

  • Krzysztof Podgórski (Lund University)  – Efficient inversion of large sparse positive definite matrices

  • Natália Bebiano (University of Coimbra, Portugal) – The periodic pseudo-Jacobi inverse eigenvalue problem

  • Malgorzata Bogdan (Lund University) – Sorted L-One Norm Penalized Estimator of the high dimensional precision matrices

Special sessions

Tensor methods in Statistics

  • Cinzia Franceschini (Università di Scienze Gastronomiche, Italy) – Dimension Reduction for Clustering Italian Children According to their Attitude towards Food Consumption
  • Nicola Loperfido (Università di Urbino, Italy) – Matrix Operations for Tensor Algebra, with Statistical Applications
  • Stepan Mazur (Örebro University and Linnaeus University, Sweden) – Fourth cumulant for the random sum of random vectors
  • Dietrich von Rosen (Swedish University of Agricultural Sciences, Sweden and Linköping University, Sweden) – Applications of the Kronecker product when solving matrix equations and constructing matrix derivatives

Götz Trenkler’s 80th birthday – Matrix analysis as a basis of applied sciences

  • Oskar Maria Baksalary (Adam Mickiewicz University, Poland) – Revisitation of matrix partial orderings
  • Jarkko Isotalo (Tampere University, Finland) – Prediction and testing of random effects in linear mixed models
  • Simo Puntanen (Tampere University, Finland) – Personal photographic glimpses of Professor Götz Trenkler
  • George P.H. Styan (McGill University, Canada) – A philatelic introduction to Ada Lovelace, Lord Byron & Charles Babbage (online) 

Registration and abstract submission

The conference fee includes conference materials, refreshments during coffee breaks, and the conference dinner.

  • Regular 300€
  • Student* 250€

* Student's status confirmation needed on site.

The conference fee should be paid by invoice and an invoice will be send to you after registration.


After registration submit your abstract (using the abstract tex template link) by email to (both tex and pdf should be attached).

Previous conferences

For previous conferences in the IWMS series: International Workshops on Matrices and Statistics



Scientific committee

  • Dietrich von Rosen (Sweden) – Chair
  • George P. H. Styan (Canada) – Honorary Chair
  • Martin Singull (Sweden)
  • Simo Puntanen (Finland)
  • Katarzyna Filipiak (Poland)
  • Daniel Klein (Slovakia)
  • Augustyn Markiewicz (Poland)
  • Júlia Volaufová (USA)
  • S. Ejaz Ahmed (Canada)
  • Francisco Carvalho (Portugal)
  • Hans Joachim Werner (Germany)

Local organizing committee

  • Martin Singull – Chair
  • Dietrich von Rosen
  • Jolanta Pielaszkiewicz
  • Elias Erdtman
  • Cigdem Cengiz
  • Monika Gustafsson