Personal profile
Research interests
Willem Haemers is a mathematician, specialised in discrete mathematics, in particular in algebraic graph theory and combinatorial designs.
He is full professor in mathematics (emeritus since December 2013).
Career
2014 - today: Emeritus
2009 - 2013: Full professor in discrete Mathematics, Tilburg University
1990 - 2009: Associate professor in mathematics, Tilburg University
1986 - 1989: Assistent professor in mathematics, Tilburg University
1981-1986: Researcher, Department of Applied Mathematics, Dr. Neher Laboratories (PTT Research), Leidschendam
1975-1980: Research assistent, Department of Mathematics, Technical University Eindhoven
PhD supervision
M.J.P. Peeters, 1991-1995.
E.R. van Dam, 1992-1996.
A. Abiad, 2011-2015.
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
-
Cospectrality results for signed graphs with two eigenvalues unequal to ±1
Haemers, W. H. & Topcu, H., Jan 2026, In: Turkish Journal of Mathematics. 50, 1, 12 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile7 Downloads (Pure) -
On Perfect Matchings, Edge-Colourings and Eigenvalues of Cubic Graphs
Haemers, W. H., 7 Jan 2026, Ithaca: Cornell University Library, 6 p. (ArXiv; vol. 2601.03778v1).Research output: Working paper › Other research output
Open AccessFile9 Downloads (Pure) -
Divisible design graphs from the symplectic graph
De Bruyn, B., Goryainov, S., Haemers, W. H. & Shalaginov, L., May 2025, In: Designs Codes and Cryptography. 93, 5, p. 1401-1424 24 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile5 Downloads (Pure) -
The Laplacian matrix of weighted threshold graphs
Ke, Y., Haemers, W. H. & Mieghem, P. V., 20 Jun 2025, arXiv, p. 1-9.Research output: Working paper › Other research output
File11 Downloads (Pure) -
The Laplacian matrix of weighted threshold graphs
Ke, Y., Haemers, W. H. & Mieghem, P. V., 4 Oct 2025, In: Electronic Journal of Linear Algebra. 41, p. 529-537Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile
Projects
- 2 Finished
-
Spectral characterizations of graphs
Abiad Monge, A. (Researcher) & Haemers, W. H. (Tutor)
1/12/11 → 1/12/14
Project: Research project
-
Spectral characterizations of graphs
Haemers, W. H. (Principal Investigator) & Camara Vallejo, M. (Researcher)
1/12/11 → 1/12/14
Project: Research project