Stefaan De Winter

Stefaan De Winter
"Mathematics is like cooking, it requires confident guesswork and improvisation, experimentation and substitution, dealing with failure and uncertainty in a creative way."
—Paraphrased from "Sir Vidia's Shadow" by Paul Theroux


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  • Associate Professor, Mathematical Sciences
  • PhD, Mathematics, Ghent University in Belgium


I was born and raised in the beautiful medieval city of Bruges (the city where the famous mathematician Simon Stevin was born), in Belgium (the country famous for chocolate, beer, and Tintin). As early as kindergarten I fell in love with numbers, and it was very quickly clear to me that mathematics would play a major role in my life. I studied pure mathematics at Ghent University, and pursued my graduate studies in its Research Group on Incidence Geometry under the guidance of Frank De Clerck and Jef A. Thas. After obtaining my PhD degree I worked as a postdoctoral researcher for the Research Foundation - Flanders in Belgium. During this time I also worked as a Teaching Visitor at the University of California San Diego (visiting Jacques Verstrate), and as a Visiting Assistant Professor at Ohio University (visiting Sergio Lopez). In August 2011 I joined the Department of Mathematical Sciences at Michigan Tech. In August 2014 I received early tenure and promotion to associate professor.

I am currently serving as Program Director in Combinatorics at the National Science Foundation.

Areas of Expertise

  • Projective geometry
  • Algebraic and geometric combinatorics
  • Groups acting on geometries and graphs

Recent Publications

  • De Winter, S., Rottey, S., Van de Voorde, G., Linear representations of subgeometries, Designs Codes and Cryptography, published online, 2014.
  • De Winter, S., Jungnickel, D., The geometric dimension of some small configurations, Journal of Geometry 103, No. 3, pp. 417-430, 2012.
  • De Winter, S., Schillewaert, J., Verstraete, J., Large incidence free sets in geometries, Electronic Journal of Combinatorics 19, No. 4, pp. 16, 2012.
  • De Clerck, F., DeWinter, S., Maes, T., Partial flocks of the quadratic cone yielding Mathon maximal arcs, Discrete Mathematics 312, No. 16, pp. 2421–2428, 2012.
  • F. De Clerck, S. De Winter and T. Maes, Singer 8-arcs of Mathon type in PG(2,2^7), Designs Codes and Cryptography, 2011
  • F. De Clerck, S. De Winter and T. Maes, A geometric approach to Mathon maximal arcs, Journal of Combinatorial Theory Series A 118, No. 4, pp. 1196-1211, 2011.
  • S. De Winter and J. Schillewaert, Characterizations of finite classical polar spaces by intersection numbers with hyperplanes and spaces of codimension 2, Combinatorica 30, 25-45, 2010.
  • S. De Winter and J. Schillewaert, A note on quasi-Hermitian varieties and singular quasi-quadrics, Bulletin of the Belgian Mathematical Society 17, No. 5, pp. 911-918, 2010.


  • Michigan Tech ``Global Literacy'' assessment committee member. Since 2014
  • Michigan Tech faculty at large senator and member of the finance committee. Since 2013
  • Coordinator of MA1161 (departmental). 2012-2014
  • Hiring committee member (departmental). 2012-2013
  • Calculus committee member (departmental). Since 2012
  • Graduate committee member (departmental). 2011-2012


  • Abstract Algebra
  • Complete Calculus Series (with Stewart, Hughes-Hallet and Rogawski)
  • Coding Theory
  • Combinatorics and Graph Theory
  • Introduction to Probability and Statistics
  • Introduction to Number Theory
  • Linear Algebra
  • Projective Geometry