# Edwin R. van Dam

Dept. Econometrics and Operations Research

PO Box 90153, 5000 LE Tilburg, The Netherlands

Koopmans building 4.11

Edwin.vanDam at tilburguniversity edu

Some recent publications

The Hoffman program for mixed graphs (with Y. Yu), Math arXiv:2406.18318

Characterizations of amorphic schemes and fusions of pairs (with J.H. Koolen and Y. Xiong), Math arXiv:2404.00567.

Rainbow Hamiltonicity and the spectral radius (with Y. Zhang), Math arXiv:2401.17845.

Symmetry in complex unit gain graphs and their spectra (with P. Wissing), Math arXiv:2305.15207.

Matching extension and distance spectral radius (with Y. Zhang), Linear Algebra and its Applications 674 (2023), 244-255. Math arXiv:2303.17284.

Spectra of power hypergraphs and signed graphs via parity-closed walks (with L. Chen and C. Bu), J. Combinatorial Th. A. 207 (2024), 105909. Math arXiv:2302.10496.

Signless Laplacian Estrada index and Laplacian Estrada index of uniform hypergraphs (with C. Duan and L. Wang), Math arXiv:2206.00109.

Pseudo-geometric strongly regular graphs with a regular point (with K. Guo), Math arXiv:2204.04755.

On bipartite distance-regular Cayley graphs with small diameter (with M. Jazaeri), Electronic Journal of Combinatorics 29 (2022), P2.12. Math arXiv:2109.13849.

Unit gain graphs with two distinct eigenvalues and systems of lines in complex space (with P. Wissing), Discrete Math. 345 (2022), 112827. Math arXiv:2105.09149.

Spectral fundamentals and characterizations of signed directed graphs (with P. Wissing), J. Combinatorial Th. A. 187 (2022), 105573 . Math arXiv:2009.12181.

Partially metric association schemes with a multiplicity three (with J.H. Koolen and J. Park), J. Combinatorial Th. B 130 (2018), 19-48. Math arXiv:1701.03193.

Distance-regular graphs (with J.H. Koolen and H. Tanaka), Electronic Journal of Combinatorics (2016), #DS22. Math arXiv:1410.6294.

Semidefinite programming and eigenvalue bounds for the graph partition problem (with R. Sotirov), Math. Programming B 151 (2015), 379-404. Math arXiv:1312.0332.

Editorial

Editor-in-Chief of the Electronic Journal of Combinatorics

E-JC is a very high-standard diamond open access journal (free to read, free to publish)

Teaching

Differentiation and Integration Theory

Miscellaneous

Some coauthors: Willem Haemers (11), Jack Koolen (12), Miquel Àngel Fiol (6), Dick den Hertog (6), Ted Spence (5), Cristina Dalfó (3), Reza Omidi (3), Renata Sotirov (3), Sebi Cioabă (2), Misha Muzychuk (2) Hein Fleuren (1), Bill Martin (1), Hajime Tanaka (1), Krystal Guo (1)

My coauthors are from: Belgium, Bosnia and Herzegovina, Canada, Catalonia, China, Croatia, Iran, Israel, Japan, Korea, the Netherlands, Romania, Russia, Scotland, United States.

The Erdös number project (mine is 2)

Ph.D. students supervised: Bart Husslage (joint supervision with Dick den Hertog), Gijs Rennen (joint supervision with Dick den Hertog), Pepijn Wissing

Ph.D. students co-promoted: Ineke Meuffels (main supervision by Hein Fleuren), Aida Abiad (main supervision by Willem Haemers)

Space-filling designs (back in the air)

Top 40 Dutch Economists 2004 (I am ranked 31), 2003 (34), 2000 (18)

Research fellow (2001-2006) of the Royal Netherlands Academy of Arts and Sciences (KNAW)