**
Brief CV**

Sjoerd Verduyn Lunel studied Mathematics with Physics at the University of Amsterdam and received a PhD from Leiden University in 1988. He is currently Professor of Applied Analysis at Utrecht University. He held positions at Brown University, Georgia Instiute of Technology, University of Amsterdam, Vrije Universiteit Amsterdam, and Leiden University. He was a visiting professor at University of California at San Diego, University of Colorado, Pomona College, University of Rome ``Tor Vergata'', and Rutgers University.

He received the C.J. Kok prize from the University of Leiden in 1989, a fellowship from the Royal Netherlands Academy of Arts and Sciences (1992-1995), and stipends and grants from C.N.R and N.S.F. to visit Italy and the USA. In 1998 he was awarded a prestigious PIONIER grant for the research project `Analysis, Dynamical Systems and Applications' from the Netherlands Organisation for Scientific Research (NWO). He was one of the founding board members of the mathematical research cluster NDNS+. Verduyn Lunel was elected member of the Royal Holland Society of Sciences and Humanities in 2012 and was appointed honorary member of the Indonesian Mathematical Society at the biannual meeting of the Indonesian Mathematical Society on June 13, 2014 in Surabaya.

He was the Head of both the Mathematical Institute and the Leiden Institute of Advanced Computer Science at Leiden University from 2004 to 2007, and the Dean of the Faculty of Science at Leiden University from 2007 to 2012. He is currently the Scientific Director of the Mathematical Institute at Utrecht University and the Chair of the board of the national platform for Dutch Mathematics (PWN). He was the Chair of the Biomathematics Foresight Committee of the Royal Netherlands Academy of Arts and Sciences and a member of a number of national committees and advisory boards. He was co-Editor-in-Chief of Integral Equations and Operator Theory (2000-2009) and is currently associate editor of SIAM Journal on Mathematical Analysis and of Integral Equations and Operator Theory.

On June 23, 2018 he was reelected officer of the European Mathematical Society for a second term (2019-2022). Since the beginning of 2015 he is the Secretary of the EMS. Since the beginning of 2016 he is one of the Directors of the Teylers Foundation.

**
Summary of research**

My research is at the interface between analysis, dynamical systems theory, and applications.

*Perturbation theory for transfer operators.*This work combines the theory of nonselfadjont operators (in particular, characteristic matrices, completeness, positivity and Wiener-Hopf factorization) with a number of new techniques from analysis (in particular growth and regularity of subharmonic functions) and dynamical systems theory (exponential dichotomies and invariant manifolds). Applications include perturbation theory for differential delay equations and algorithms to compute the Hausdorff dimension of conformally self-similar invariant sets.*From biological data to nonlinear dynamics.*This work is devoted to a distance-based analysis of dynamical systems with promising applications. This approach allows extracting the dynamical behaviour of a system from time series data only. Here, probability distributions in phase space are assigned numerical distances quantifying the amount of synchronisation between different time series. Applications include, for example, the classification of asthmatics and COPD patients by comparing their forced oscillation technique (FOT) dynamics nonparametrically.

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Supervised PhD students**

B. Lehman (with J.K. Hale), Georgia Institute of Technology, 1992; M.J. Maes (with P.W. Hemker), Universiteit van Amsterdam, 1997; B. Lemmens, Vrije Universiteit, 2001; T.L. van Noorden, Vrije Universiteit, 2002; B.A. van de Rotten, Universiteit Leiden, 2003; M.V.S. Frasson, Universiteit Leiden, 2005; M.C.M. Welten (with Dr.ir. F.J. Verbeek), Universiteit Leiden, 2007; M. Georgi (with B. Fiedler), Freie Universitat Berlin, 2007; H.J. Hupkes, Universiteit Leiden, 2008; M. Muskulus, Universiteit Leiden, 2010; J. Bierkens (with O.W. van Gaans), Universiteit Leiden, 2010; D. Worm (with S.C. Hille), Universiteit Leiden, 2010; I. Stojkovic (with O.W. van Gaans), Universiteit Leiden, 2011; A. Ghosh (with J.A.J. Metz and P. Haccou), Universiteit Leiden, 2012; T. Alkurdi (with S.C. Hille and O.W. van Gaans), Universiteit Leiden, 2013; G. Chen (with O.W. van Gaans), Universiteit Leiden, 2013.

**
Keynote lectures (2012/2015)**

*Dynamics of Differential Equations*, Brown University, Providence, USA., 2012.*The 9th Advanced Course in Complex Analysis and Operator Theory*, Sevilla, Spain, 2012.*Conference on Dynamics of Differential Equations, in memory of Jack Hale*, Georgia Institute of Technology, Atlanta, U.S.A., 2013.*Colloquium*Warwick University, 2013.*Workshop on Differential-Delay Equations: theory and applications*, University College London, U.K., 2014.*Konferensi Nasional Matematika XVII*, ITS, Surabaya, Indonesia, 2014.*10th Colloquium on the Qualitative Theory of Differential Equations*, Szeged, Hungary, 2015*Oberseminar Nonlinear Dynamics*, Technische Universitat Berlin, 2015

**
Top 10 publications past 10 years**

- H.J. Hupkes and S.M. Verduyn Lunel, Analysis of Newton's method to compute travelling waves in discrete media, J. Dynam. Differential Equations 17 (2005), 523-572. MR 2006e:65129.
- H.J. Hupkes and S.M. Verduyn Lunel, Center manifold theory for functional differential equations of mixed type, J. Dynam. Differential Equations 19 (2007), 497-560. MR 2008c:34156.
- H. J. Hupkes and S. M. Verduyn Lunel, Lin's method and homoclinic bifurcations for functional differential equations of mixed type, Indiana Univ. Math. J. 58 (2009), 2433-2488. MR 2011d:34147.
- J. Bierkens, O.W. van Gaans and S.M. Verduyn Lunel, Existence of an invariant measure for stochastic evolutions driven by an eventually compact semigroup. J. Evol. Equ. 9 (2009), 771-786. MR 2011d:60197.
- M. Muskulus, A. Slats, P.J. Sterk and S.M. Verduyn Lunel, Fluctuations and determinism of respiratory impedance in asthma and chronic obstructive pulmonary disease, J. Appl. Physiology 109 (2010), 1582-1591.
- J. Bierkens, O.W. van Gaans and S.M. Verduyn Lunel, Estimate on the pathwise Lyapunov exponent of linear stochastic differential equations with constant coefficients, Stoch. Anal. Appl. 28 (2010), 747-762.
- M. Muskulus and S.M. Verduyn Lunel, Wasserstein distances in the analysis of time series and dynamical systems, Phys. D 240 (2011), 45-58. MR 2011k:37131.
- R. Nussbaum, A. Priyadarshi and S.M. Verduyn Lunel, Positive Operators and Hausdorff Dimension of Invariant Sets, Trans. Amer. Math. Soc. 364 (2012), 1029-1066.
- B.A. van de Rotten and S.M. Verduyn Lunel, A memory-efficient Broyden method to compute fixed points of non-linear maps arising in periodically forced processes, IMA J. Appl. Math. 80 (2015), 585-607.
- J Mallet-Paret and S.M. Verduyn Lunel, Exponential dichotomies and Wiener-Hopf factorizations for mixed-type functional differential equations, J. Diff. Eqn, to appear.

**
Google Scholar**

Here is my Google Scholar Profile.

**
Downloads**

A brief and a complete Curriculum Vitae is available.

My publications can be found here and a pdf of any publication is available upon request.

Here is a list of my PhD students with links to the PhD theses.

**
Onderzoek in Beeld**

Mijn onderzoek is onderdeel van het Onderzoek in Beeld project van de Universiteit Utrecht.

See also my university research profile page.

Maintained by: s.m.verduynlunel@uu.nl

Last modified: 7 Jul 2018