Institute for applied mathematics

Martijn Zaal

Institute for Applied Mathematics
University of Bonn

Snail-mail Institute for Applied Mathematics
University of Bonn
Endenicher Allee 60
53115 Bonn

Short CV

Born May 17, 1986

1997-2003College Hageveld, Heemstede (Netherlands)
2003-2006Bachelor Econometrics & OR at VU University Amsterdam
2003-2008Mathematics at VU University Amsterdam
2003-2006TA Mathematics at Stichting Studiebegeleiding Leiden
2006-2008TA Mathematics at VU University Amsterdam
2008-2012PhD candidate in Mathematics at VU University Amsterdam, supervisor: Joost Hulshof


  • <a href=''>Hauptseminar Integralgleichungen</a> (Summer 2015, S2B1 <a href=''>61110100</a>)
  • TA <a href=''>PDE and Modelling</a> (Summer 2015; V3B2 <a href=''>611100304</a>)
  • <a href=''>Hauptseminar Variationsrechnung</a> (Winter 2014-2015; S2B2 <a href=''>611102004</a>)
  • TA <a href=''>Einführung in die partiellen Differentialgleichungen</a> (Summer 2014; V2B2 <a href=''>611100302</a> and <a href=''>611300302</a>)
  • <a href=''>Graduate Seminar Discrete PDEs</a> (Winter 2013-2014; S4B2 <a href=''>611501006</a>)
  • TA <a href=''>Nonlinear Partial Differential Equations II</a> (Summer 2013; V4B2 <a href=''>611500302</a> and <a href=''>611700302</a>)

Research & Publications

Research interest

My main research interest is variational modeling of partial differential equations with a free boundary. In particular, I am working on a model for cell swelling by osmosis. The model consists of linear diffusion equations on two domains, separated by a moving boundary. The boundary movement includes osmotic force and surface tension.



  1. Martijn Zaal, On the Role of Cylindrical Functions in Kantorovich duality, submitted to Journal de Mathématiques Pures et Appliquées, April 2015.
  2. Martijn Zaal, The Gradient Structure of the Mean Curvature Flow, accepted for publication in Advances in Calculus of Variations, February 2014.
  3. Martijn Zaal, Cell Swell by Osmosis: Existence, Uniqueness and Long-time Behaviour, Mathematical Methods in the Applied Sciences 38 (2015), 380–392.
  4. Martijn Zaal, Variational Modeling of Parabolic Free Boundary Problems, Phd thesis, VU University Amsterdam, apr 2013.
  5. Martijn Zaal, Cell Swelling by Osmosis: a Variational Approach, Interfaces and Free Boundaries 14 (2012), 487–520.
  6. Peter Dickinson, Joost Hulshof, André Ran, Majid Salmani, and Martijn Zaal,Optimal Flood Control, Proceedings of the Seventy-ninth European Study Group with Industry (Bob Planqué, Sandjai Bhulai, Joost Hulshof, Wouter Kager, and Thomas Rot, eds.), 2011, pp. 35–47.
  7. Bas van't Hof, Jaap Molenaar, Lennart Ros, and Martijn Zaal, How to Mix Molecules with Mathematics, Proceedings of the 67th European Study Group Mathematics With Industry (Jaap Molenaar, Karel Keesman, Joost van Opheusden, and Timo Doeswijk, eds.), 2009, pp. 47–66.
  8. Martijn Zaal, Linear Stability of Osmotic Cell Swelling, Master's thesis, VU University Amsterdam, jul 2008.


Die ehemalige Doktorandin am IAM, Lisa Hartung (aktuell: Courant Institute of Mathematical Sciences, New York), wurde für ihre herausragende Doktorarbeit "Extremal Processes in Branching Brownian Motion and Friends" (Betreuer: Prof. Bovier) mit dem Förderpreis der DMV-Fachgruppe Stochastik ausgezeichnet. Details hier. (14.03.2018)

Prof.  Patrik Ferrari erhält den ersten Alexandros Award zusammen mit Ivan Corwin (Columbia University) und Alexei Borodin (MIT) für den Artikel "Free energy fluctuations for directed polymers in random media in 1+1 dimensions".
Details siehe hier. (12.03.2018)

Frau Dr. Martina Vera Baar erhält den Hausdorff-Gedächtnispreis für die beste Dissertation des akademischen Jahres 2016/17 (Betreuer: Prof. Dr. A. Bovier, IAM). (Pressemitteilung, 24.01.2018)


Managing Director: Prof. Dr. Anton Bovier
Chief Administrator: Dr. B. Doerffel

Mailing address

Institute for Applied Mathematics
University of Bonn
Endenicher Allee 60
D-53115 Bonn / Germany