World's Best Scientists 2026 revealed!
Pierre Hansen

Pierre Hansen

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Mathematics
Canada
2026
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Computer Science
Canada
2025

D-Index & Metrics

Mathematics

D-Index
91
Citations
39575
World Ranking
66
National Ranking
4

Computer Science

D-Index
91
Citations
39484
World Ranking
575
National Ranking
20

Pierre Hansen 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 Pierre Hansen 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: 493 publications — 96th percentile

96% of scientists in this discipline score the same or lower.

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

Pierre Hansen 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 Pierre Hansen 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: 91 D-Index — 98th percentile

98% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Mathematics in Canada Leader Award
  • 2025 - Research.com Computer Science in Canada Leader Award
  • 2025 - Research.com Mathematics in Canada Leader Award
  • 2023 - Research.com Computer Science in Canada Leader Award
  • 2023 - Research.com Mathematics in Canada Leader Award
  • 2022 - Research.com Computer Science in Canada Leader Award
  • 1986 - EURO Gold Medal

Overview

Pierre Hansen is affiliated with HEC Montréal in Canada. Their research spans the fields of Computer Science and Mathematics, with a total of 12 publications related to Computer Science and 4 publications in Mathematics. Within these fields, Hansen's work specifically addresses subfields such as Geometry and Topology, Computer Vision and Pattern Recognition, Computational Theory and Mathematics, Signal Processing, and Computer Networks and Communications.

Their research topics include the following areas:

  • Graph theory and applications
  • Data Management and Algorithms
  • Constraint Satisfaction and Optimization
  • Advanced Image and Video Retrieval Techniques
  • Matrix Theory and Algorithms
  • Finite Group Theory Research
  • Advanced Numerical Analysis Techniques

Hansen's publication record features recent papers such as:

  • "On the difference of energies of a graph and its complement graph," 2020, Linear Algebra and its Applications
  • "Global exact optimization for covering a rectangle with 6 circles," 2021, Journal of Global Optimization
  • "A relation between proximity and the third largest distance eigenvalue of a graph," 2021, Discrete Applied Mathematics
  • "Corrigendum to "On the difference of energies of a graph and its complement graph" [Linear Algebra Appl. 595 (2020) 1-12]," 2021, Linear Algebra and its Applications
  • "Using symbolic calculations to determine largest small polygons," 2020, Journal of Global Optimization

Publications have appeared in venues where Hansen has multiple contributions, including:

  • Linear Algebra and its Applications
  • Journal of Global Optimization
  • Discrete Applied Mathematics
  • Operations Research Forum

Co-authorship has been shared with several frequent collaborators such as Seyed Ahmad Mojallal, with whom Hansen has co-authored three papers. Other notable coauthors include Andrei Sleptchenko, Angelo Sifaleras, Sonia Cafieri, and Frédéric Messine.

In addition to journal articles, Hansen has contributed to book publications, notably through Springer Science+Business Media with the book titled Variable Neighborhood Search, published in 2023.

Hansen received the EURO Gold Medal in 1986.

Best Publications

  • Variable neighborhood search

    N. Mladenović;P. Hansen

  • Variable neighborhood search: Principles and applications

    Pierre Hansen;Nenad Mladenović

  • NP-hardness of Euclidean sum-of-squares clustering

    Daniel Aloise;Amit Deshpande;Pierre Hansen;Preyas Popat

  • Variable Neighborhood Search: Methods and Applications

    Pierre Hansen;Nenad Mladenović;José A. Moreno Pérez

  • New branch-and-bound rules for linear bilevel programming

    Pierre Hansen;Brigitte Jaumard;Gilles Savard

  • Variable neighbourhood search: methods and applications

    Pierre Hansen;Nenad Mladenović;José A. Moreno Pérez

  • An Introduction to Variable Neighborhood Search

    Pierre Hansen;Nenad Mladenović

  • Cluster analysis and mathematical programming

    Pierre Hansen;Brigitte Jaumard

  • Bicriterion Path Problems

    Pierre Hansen

  • The p-median problem: A survey of metaheuristic approaches

    Nenad Mladenović;Jack Brimberg;Pierre Hansen;José A. Moreno-Pérez

  • Variable neighborhood search for the p-median

    P. Hansen;N. Mladenović

  • Algorithms for the maximum satisfiability problem

    Pierre Hansen;Brigitte Jaumard

  • Stabilized column generation

    Olivier du Merle;Daniel Villeneuve;Jacques Desrosiers;Pierre Hansen

  • Variable Neighborhood Decomposition Search

    Pierre Hansen;Nenad Mladenović;Dionisio Perez-Britos

  • Variable Neighborhood Search

    Jack Brimberg;Pierre Hansen;Nenad Mladenović;José A. Moreno Pérez

  • Essays and Surveys in Metaheuristics

    Celso Ribeiro;Pierre Hansen

  • Roof duality, complementation and persistency in quadratic 0–1 optimization

    Peter L. Hammer;Pierre Hansen;Bruno Simeone

  • J-Means: a new local search heuristic for minimum sum of squares clustering

    Pierre Hansen;Nenad Mladenović

  • Variable neighborhood search: basics and variants

    Pierre Hansen;Nenad Mladenović;Raca Todosijević;Saïd Hanafi

  • Variable neighborhood search for extremal graphs: 1 the AutoGraphiX system

    Gilles Caporossi;Pierre Hansen

  • Variable Neighbourhood Search

    P. Hansen;N. Mladenovic;J.A. Moreno

  • Variable Neighborhood Search.

    Pierre Hansen;Nenad Mladenovic

  • The p -Median Problem: A Survey of Metaheuristic Approaches

    Nenad Mladenović;Jack Brimberg;Pierre Hansen;José A. Moreno Pérez

Frequent Co-Authors

Brigitte Jaumard
Brigitte Jaumard Concordia University
Nenad Mladenović
Nenad Mladenović Khalifa University
Charles Audet
Charles Audet Polytechnique Montréal
Leo Liberti
Leo Liberti École Polytechnique
Jack Brimberg
Jack Brimberg Royal Military College of Canada
Martine Labbé
Martine Labbé Université Libre de Bruxelles
Jacques-François Thisse
Jacques-François Thisse Université Catholique de Louvain
Gilles Savard
Gilles Savard Polytechnique Montréal
Alain Hertz
Alain Hertz Polytechnique Montréal
Ivan Gutman
Ivan Gutman University of Kragujevac

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