Johan Thim

Associate Professor

Publications

2026

Jean Pierre Ngendahayo, Minani Froduald, Johan Thim, Fredrik Berntsson (2026)

Solving an inverse heat conduction problem with phase transitions using Tikhonov regularization RESEARCH IN MATHEMATICS, Vol. 13, Article 2670816 (Article in journal)

https://dx.doi.org/10.1080/27684830.2026.2670816

2025

J. P. Ngendahayo, F. Minani, Johan Thim, Fredrik Berntsson (2025)

Convergence Analysis of Iterative Tikhonov Regularization Applied to an Inverse Heat Conduction Problem International Journal of Applied and Computational Mathematics, Vol. 11, Article 149 (Article in journal)

https://dx.doi.org/10.1007/s40819-025-01972-0

2020

Vladimir Kozlov, Johan Thim (2020)

Hadamard asymptotics for eigenvalues of the Dirichlet Laplacian Journal des Mathématiques Pures et Appliquées, Vol. 140, p. 67-88 (Article in journal)

https://dx.doi.org/10.1016/j.matpur.2020.06.002

2017

Fredrik Berntsson, Anna Orlof, Johan Thim (2017)

Error Estimation for Eigenvalues of Unbounded Linear Operators and an Application to Energy Levels in Graphene Quantum Dots Numerical Functional Analysis and Optimization, Vol. 38, p. 293-305 (Article in journal)

https://dx.doi.org/10.1080/01630563.2017.1279176

2016

Vladimir Kozlov, Johan Thim (2016)

Hadamard type asymptotics for eigenvalues of the Neumann problem for elliptic operators Journal of Spectral Theory, Vol. 6, p. 99-135 (Article in journal)

https://dx.doi.org/10.4171/JST/120

Organisation

Blue pen lying on a paper with mathematical text.

Analysis and Mathematics Education (ANDI)

The Division of Analysis and Mathematics Education conducts both interdisciplinary and applied research in various branches of analysis and didactics of mathematics.

Department of Mathematics (MAI)

The department conducts research in computational mathematics, mathematics and applied mathematics, mathematical statistics, and optimization. We provide courses to students in most degree programmes in mathematics, science and engineering.

Studenthuset on Campus Valla in Linköping

About LiU

Linköping University, LiU, offers innovative education and boundary-crossing research. The students are among the most desirable in the labour market and international rankings consistently place LiU as a leading global university.