A photograph of Hil Meijer I studied Physics and Mathematics in Utrecht. I continued there with Yuri Kuznetsov and Ferdinand Verhulst as my advisors. After my Ph.D. in Mathematics in december 2006. I then moved to the University of Twente to work as an assistant professor in the chair Applied Analysis of prof.dr. S.A. van Gils.

My research on Numerical Bifurcation Theory deals with theoretical descriptions and numerical tools for bifurcations in ODEs and maps. The tools classify the dynamics near a bifurcation and allow initialization of nontrivial bifurcation curves. I am an active developer of the matlab toolbox MATCONT and have taught several related tutorials.

My research on Neurostimulation centers around the idea that a stimulus steers neuronal dynamics. In neurodegenerative contexts such as epilepsy and Parkinson's disease, there is undesirable oscillatory dynamics that may be quenched by a suitable stimulus. Understanding the effect of such stimuli may lead to improved techniques for Deep Brain Stimulation. In addition, stimulation offers a window to study and uncover neurophysiological processes. The SPES protocol, for instance, may reveal epileptogenic networks. Psychophysics offers an interesting window into pathology and cognition. I strive to develop computational models of neuronal dynamics that explain data and have a clinical relevance.

News and Events:

--10-7-17: Graduation of Manu Kalia co-supervised with Yuri Kuznetsov, see his Thesis on homoclinic saddle to saddle-focus transitions in 4D systems.
--15-6-16: Surprise thanks for my teaching from Abacus (Student Association of Math), see the flowers .
--February-June 2016: Guest researcher Zohre Eskandari from Isfahan, Iran, working on numerical symmetric bifurcations.
--4 December 2015: Huan Yang proudly defended his PhD Thesis. (Exactly nine years after my own, to the minute). Then moved for a postdoc to LACDR, Leiden, NL.
--April 2015: Following very positive comments of students, I was interviewed regarding my teaching. Read it here .
--October 2014: Jurgen Hebbink started as PhD on the ZonMW-project "From neural mass models to clinical protocols" with UMC Utrecht, see Projects.
--June 23-25, 2014: Bifurcation Analysis Workshop, Hasselt, June 23-25, 2014, see the Flyer .
--November 2013: Theme session on Fechner Day 2013, Freiburg, see Proceedings
--Academic year 2009-2010, there will be a MRI masterclass on Numerical Bifurcation Analysis of Dynamical Systems with several related activities. Notes on codim 2 bifurcations of maps.
--On 11-1-2008 we organize a one-day minisymposium Multiscale Modeling and Singular Perturbations as part of a winterschool.