I am an Assistant Professor at the University of Uppsala in the Computational Science Department . Prior to that, I was a James van Loo Postdoctoral Fellow and Assistant Professor in the Department of Mathematics at the University of Michigan in Ann Arbor. I received my PhD in 2018 from Delft University of Technology with my thesis advisor Rob F. Remis. During my PhD I spent one semester at ICERM at Brown University. 

My research interests lie in the field of numerical methods for partial differential equations,  inverse problems, and reduced-order modeling.

• V. Druskin and J. Zimmerling, A Krylov projection algorithm for large symmetric matrices with dense spectra, arXiv preprint, https://arxiv.org/abs/2504.06998, 2025. 

• Jörn Zimmerling, Vladimir Druskin and Valeria Simoncini, Monotonicity, bounds and averaging of Block-Gauss and Gauss-Radau quadrature for computing BT ⁢ϕ⁢(A) ⁢B, J Sci Comput  103, 5, 2025, (link)

• Liliana Borcea, Josselin Garnier, Alexander V. Mamonov, and Jörn  Zimmerling, When data-driven reduced order modeling meets full waveform inversion, SIAM Review, Vol. 66, Iss. 3 10.1137/23M1552826 (2024)  (link) [arXiv:2302.05988 (link)]

• Liliana Borcea, Josselin Garnier Alexander V. Mamonov, and Jörn  Zimmerling, Waveform inversion with a data driven estimate of the internal wave,  SIAM Journal on Imaging Sciences, 16:1, 280 - 312, (2023), arxiv:2208.11051 (link)

• Liliana Borcea, Josselin Garnier Alexander V. Mamonov, and Jörn  Zimmerling, Reduced order model approach for imaging with waves, Inverse Problems 38-2, pp 025004 (2021), arxiv:2108.01609, (link)

• Jörn Zimmerling and Rob Remis, Modal analysis of photonic and plasmonic resonators, Opt. Express 28, 20728-20737, 2020 (link)

• Jörn Zimmerling, Lei Wei, Paul Urbach, Rob Remis, A Lanczos model-order reduction technique to efficiently simulate electromagnetic wave propagation in dispersive media, Journal of Computational Physics, Volume 315, Pages 348-362, 2016 (link)

A complete list of publications and conference talks can be found here.

Here are links to my professional profiles

• • Department site

  • Linkedin

  • Goolge Scholar

  • Research Gate

  • ORCID: 0000-0002-3530-5723