Ilkka Törmä
PhD
iatorm@utu.fi Office: 395 ORCID identifier: https://orcid.org/0000-0001-5541-8517 |
Symbolic dynamics; Cellular automata
I am a university lecturer at the Department of Mathematics and Statistics. I obtained my PhD from the University of Turku in 2015. Since then I have worked as a researcher at Boston University (USA), University of Montpellier (France), and now at the University of Turku.
I study cellular automata and multidimensional symbolic dynamics, from both dynamical and computational perspectives. In particular, I am interested in the properties of multidimensional SFTs and sofic shifts, and the relations between their different subclasses.
I regularly teach courses on Euclidean geometry, linear algebra and the Finnish high school mathematics curriculum for teachers.
- A Perturbed Cellular Automaton with Two Phase Transitions for the Ergodicity (2026)
- Journal of Statistical Physics
(A1 Refereed original research article in a scientific journal) - Limit dynamics of elementary cellular automaton 18 (2026)
- Ergodic Theory and Dynamical Systems
(A1 Refereed original research article in a scientific journal) - On countable SFT covers of sparse multidimensional shift spaces (2026)
- Theoretical Computer Science
(A1 Refereed original research article in a scientific journal) - Multidimensional Tilings and MSO Logic (2025)
- Lecture Notes in Computer Science
(A4 Refereed article in a conference publication ) - Structure and computability of preimages in the Game of Life (2025)
- Theoretical Computer Science
(A1 Refereed original research article in a scientific journal) - Symbol Frequencies in Surjective Cellular Automata (2025)
- Lecture Notes in Computer Science
(A4 Refereed article in a conference publication ) - Finding Codes on Infinite Grids Automatically (2024)
- Fundamenta Informaticae
(A1 Refereed original research article in a scientific journal) - A physically universal Turing machine (2023)
- Journal of Computer and System Sciences
(A1 Refereed original research article in a scientific journal) - Arithmetical complexity of the language of generic limit sets of cellular automata (2023)
- Journal of Computer and System Sciences
(A1 Refereed original research article in a scientific journal) - Diddy: A Python Toolbox for Infinite Discrete Dynamical Systems (2023)
- Lecture Notes in Computer Science
(A4 Refereed article in a conference publication )



