Willem H. Haemers

Major fields
Discrete mathematics, combinatorics, algebraic graph theory, finite geometry, design theory and coding theory.

Editorial
Editor in chief of The Electronic Journal of Combinatorics.
Member of the editorial board of Designs, Codes and Cryptography.
Editor of Innovations in Incidence Geometry.
Member of the advisory board of Publications de l'Institut Mathématique (Serbia).

Conferences and workshops
First Joint Conference of the Belgian, Royal Spanish and Luxembourg Mathematical Societies, Liege, Belgium, June 6-8, 2012.
Conference on applications of graph spectra in computer science, Bellaterra (Barcelona), July 16-20, 2012.
ICTP-IPM Workshop and Conference in Combinatorics and Graph Theory, Trieste, September 3-14, 2012.
Conference on finite geometries in honour of Frank De Clerck, Ferrara, September 17-18, 2012

Teaching
Blackboard CourseInfo.
Zomercursus wiskunde (Summer course mathematics in Dutch) voor aanstaande studenten Economie en Bedrijfskunde, Tilburg University, 30 jul - 10 aug, 2012.

Other things and links
Universitaire Wiskunde Competitie, mathematical problems for students from The Netherlands and Belgium.
Reader with Addendum for a series of lectures on "Matrix techniques for strongly regular graphs and related geometries", given in Ghent (April 2000).
Videos of an advanced course on eigenvalue techniques in graph theory given in Barcelona (June 2011).
1. Interlacing; the appetizer. 2. More interlacing for the adjacency matrix. 3. Perfect matchings. 4. Regularity and spectral characterizations.
Edwin van Dam, Andries E. Brouwer, Ted Spence.
Fon-Der-Flaass memorial book.
Chello, UvT-mail, Bibliotheek.
Paintings by Katrien Haemers.