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Willem H. Haemers

Willem H. Haemers

D-Index & Metrics

Mathematics

D-Index
33
Citations
11972
World Ranking
2974
National Ranking
36

Willem H. Haemers publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Willem H. Haemers sits on this spectrum.

42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 83 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientists 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientists 522–526 publications: 3 scientists 527–531 publications: 1 scientists 532–536 publications: 4 scientists 537+ publications: 100 scientists
42 publications 537+

This scientist: 222 publications — 70th percentile

70% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

Willem H. Haemers D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Willem H. Haemers sits on this spectrum.

30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 138 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 33 D-Index — 17th percentile

17% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

Overview

Willem H. Haemers is affiliated with Tilburg University in the Netherlands and has contributed extensively to the fields of mathematics and computer science. Their research focuses primarily on geometry and topology, computational theory and mathematics, discrete mathematics and combinatorics, electrical and electronic engineering, and organic chemistry.

Their work covers several specialized topics, including:

  • Graph theory and applications
  • Matrix theory and algorithms
  • Finite group theory research
  • Graph theory and CDMA systems
  • Advanced graph theory research
  • Graph labeling and dimension problems
  • Synthesis and properties of aromatic compounds

Willem H. Haemers has published papers across a variety of reputable venues. Some of the most frequent publication platforms include:

  • arXiv (Cornell University)
  • Linear Algebra and its Applications
  • Designs Codes and Cryptography
  • Ars Mathematica Contemporanea
  • Algebraic Combinatorics

Notable recent papers by Haemers include:

  • On signed graphs with at most two eigenvalues unequal to ±1, 2023, Linear Algebra and its Applications
  • Research portal (Tilburg University), 2020

Other related papers in the network of research include works such as:

  • Graph toughness from Laplacian eigenvalues, 2022, Algebraic Combinatorics (author: Xiaofeng Gu)
  • The chromatic index of strongly regular graphs, 2021, Ars Mathematica Contemporanea (author: Sebastian M. Cioabă)
  • Divisible design graphs from the symplectic graph, 2024, Designs Codes and Cryptography (author: Bart De Bruyn)

Frequent collaborators who have coauthored with Haemers on multiple occasions include:

  • Hatice Topçu
  • Leonid Shalaginov
  • Xiaofeng Gu
  • Bart De Bruyn
  • Sergey Goryainov

Best Publications

  • Distance-Regular Graphs

    Andries E Brouwer;Arjeh M Cohen;Arnold Neumaier

  • Spectra of graphs

    Andries E. Brouwer;Willem H. Haemers

  • Which graphs are determined by their spectrum

    Edwin R. van Dam;Willem H. Haemers

  • Interlacing eigenvalues and graphs

    W.H. Haemers

  • Interlacing eigenvalues and graphs

    Willem H. Haemers

  • Zero forcing sets and the minimum rank of graphs

    Francesco Barioli;Wayne Barrett;Steve Butler;Sebastian M. Cioabă

  • Developments on spectral characterizations of graphs

    Edwin R. Van Dam;Willem H. Haemers

  • Enumeration of cospectral graphs

    Willem H. Haemers;Edward Spence

  • Eigenvalue techniques in design and graph theory

    WH Willem Haemers

  • Association schemes

    Andries E. Brouwer;Willem H. Haemers

  • On Some Problems of Lovász Concerning the Shannon Capacity of a Graph

    W. Haemers

  • Eigenvalues and perfect matchings

    AE Andries Brouwer;WH Willem Haemers

  • Deza graphs: A generalization of strongly regular graph

    M. Erickson;S. Fernando;W. H. Haemers;D. Hardy

  • Spectral characterizations of lollipop graphs

    Willem H. Haemers;Xiaogang Liu;Yuanping Zhang

  • The Gewirtz Graph

    A.E. Brouwer;W.H. Haemers

  • Matchings in regular graphs from eigenvalues

    Sebastian M. Cioabă;David A. Gregory;Willem H. Haemers

  • Skew-adjacency matrices of graphs

    M. Cavers;S.M. Cioabă;S. Fallat;D.A. Gregory

  • An inequality for generalized hexagons

    Willem Haemers;Cornelis Roos

  • On the sum of Laplacian eigenvalues of graphs

    W.H. Haemers;A. Mohammadian;B. Tayfeh-Rezaie

  • The complement of the path is determined by its spectrum

    Michael Doob;Willem H. Haemers

  • Binary Codes of Strongly Regular Graphs

    Willem H. Haemers;René Peeters;Jeroen M. Van Rijckevorsel

  • Seidel Switching and Graph Energy

    W.H. Haemers

  • Developments on Spectral Characterizations of Graphs

    E.R. van Dam;W.H. Haemers

Frequent Co-Authors

Andries E. Brouwer
Andries E. Brouwer Eindhoven University of Technology
Shaun M. Fallat
Shaun M. Fallat University of Regina
Vera Pless
Vera Pless University of Illinois at Chicago
Chris Godsil
Chris Godsil University of Waterloo
Patrick Solé
Patrick Solé Centre national de la recherche scientifique, CNRS
Dragoš Cvetković
Dragoš Cvetković University of Belgrade
Peter J. Cameron
Peter J. Cameron University of St Andrews
Leslie Hogben
Leslie Hogben Iowa State University
Dieter Jungnickel
Dieter Jungnickel University of Augsburg

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