• Warandelaan 2, Prisma Building, room P 2.221

    5037 AB Tilburg

    Netherlands

1978 …2019
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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 Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

  • 2 Similar Profiles
Graph in graph theory Mathematics
Adjacency Matrix Mathematics
Strongly Regular Graph Mathematics
Graph Design Mathematics
Eigenvalue Mathematics
Cospectral Graphs Mathematics
Distance-regular Graph Mathematics
Regular Graph Mathematics

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Research Output 1978 2019

Cospectral pairs of regular graphs with different connectivity

Haemers, W. H., 11 Apr 2019, Ithaca: Cornell University Library, (arXiv; vol. 1904.05936).

Research output: Working paperOther research output

Open Access
Vertex Connectivity
Edge-connectivity
Regular Graph
Connectivity

Deza graphs with parameters $(n,k,k-1,a)$ and $β=1$

Goryainov, S., Haemers, W. H., Kabanov, V. V. & Shalaginov, L., Mar 2019, In : Journal of Combinatorial Designs. 27, 3, p. 188-202

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Graph Design
Graph in graph theory
Divisible
Strongly Regular Graph
Strictly

Cospectral mates for the union of some classes in the Johnson association scheme

Cioabă, S. M., Haemers, W. H., Johnston, T. & McGinnis, M., 15 Feb 2018, In : Linear Algebra and its Applications. 539, p. 219-228

Research output: Contribution to journalArticleScientificpeer-review

Association Scheme
Union
Subset
Graph in graph theory
Adjacent

Graph switching, 2-ranks, and graphical Hadamard matrices

Abiad, A., Butler, S. & Haemers, W. H., Dec 2018, In : Discrete Mathematics.

Research output: Contribution to journalArticleScientificpeer-review

Hadamard matrices
Hadamard Matrix
Graph in graph theory
Strongly Regular Graph
Graph Products

On the spectral characterization of mixed extensions of P3

Haemers, W. H., Sorgun, S. & Topcu, H., 30 Oct 2018, Ithaca: Cornell University Library, 10 p. (arXiv; vol. 1810.12615).

Research output: Working paperOther research output

Open Access
File
Adjacency
Graph in graph theory
Adjacent
Eigenvalue
Unequal

Projects 2011 2014

Spectral characterizations of graphs

Abiad Monge, A. & Haemers, W. H.

1/12/111/12/14

Project: Research project

Spectral characterizations of graphs

Haemers, W. H. & Camara Vallejo, M.

1/12/111/12/14

Project: Research project