World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
46
Citations
17942
World Ranking
1311
National Ranking
585

Engineering and Technology

D-Index
46
Citations
17877
World Ranking
5027
National Ranking
1426

Neil Robertson 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 Neil Robertson 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: 87 publications — 5th percentile

5% of scientists in this discipline score the same or lower.

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

Neil Robertson 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 Neil Robertson 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: 46 D-Index — 64th percentile

64% 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

  • 2013 - Fellow of the American Mathematical Society

Overview

What is he best known for?

The fields of study he is best known for:

  • Graph theory
  • Graph coloring
  • Combinatorics

Neil Robertson mainly focuses on Discrete mathematics, Combinatorics, Planar graph, Graph minor and Outerplanar graph. All of his Discrete mathematics and Universal graph, Wagner graph, Complete graph, Robertson–Seymour theorem and Path graph investigations are sub-components of the entire Discrete mathematics study. Forbidden graph characterization, Complement graph, Butterfly graph, Planar straight-line graph and Polyhedral graph are subfields of Combinatorics in which his conducts study.

He has included themes like Hypergraph, Bounded function and Force-directed graph drawing in his Complement graph study. His research in Planar straight-line graph intersects with topics in Four color theorem, Five color theorem and Book embedding. His Planar graph research is multidisciplinary, incorporating elements of Line graph and Distance-hereditary graph.

His most cited work include:

  • Graph minors. II: Algorithmic aspects of tree-width (1257 citations)
  • Graph minors. XIII: the disjoint paths problem (1054 citations)
  • Graph Minors. XX. Wagner's conjecture (622 citations)

What are the main themes of his work throughout his whole career to date?

The scientist’s investigation covers issues in Combinatorics, Discrete mathematics, Planar graph, Graph minor and Forbidden graph characterization. Complement graph, Robertson–Seymour theorem, Butterfly graph, Partial k-tree and Conjecture are the core of his Discrete mathematics study. His biological study spans a wide range of topics, including Distance-regular graph and Factor-critical graph.

His work in Planar graph addresses issues such as Wagner graph, which are connected to fields such as Petersen graph. His study looks at the relationship between Graph minor and topics such as Complete graph, which overlap with Apex graph. His Forbidden graph characterization study frequently intersects with other fields, such as Universal graph.

He most often published in these fields:

  • Combinatorics (96.25%)
  • Discrete mathematics (86.25%)
  • Planar graph (28.75%)

What were the highlights of his more recent work (between 2007-2017)?

  • Combinatorics (96.25%)
  • Discrete mathematics (86.25%)
  • Conjecture (7.50%)

In recent papers he was focusing on the following fields of study:

His primary areas of study are Combinatorics, Discrete mathematics, Conjecture, Graph minor and Graph. In general Combinatorics study, his work on Planar graph, Wagner graph and Forbidden graph characterization often relates to the realm of Mathematical proof and Planar, thereby connecting several areas of interest. Partial k-tree, Outerplanar graph, Graph labeling and Graph coloring is closely connected to Robertson–Seymour theorem in his research, which is encompassed under the umbrella topic of Planar graph.

His studies examine the connections between Forbidden graph characterization and genetics, as well as such issues in Complement graph, with regards to Factor-critical graph, Vertex-transitive graph, Graph factorization and Bound graph. Neil Robertson works on Discrete mathematics which deals in particular with Petersen graph. His Graph research is multidisciplinary, incorporating perspectives in Chromatic scale, Graph theory and Degree.

Between 2007 and 2017, his most popular works were:

  • Graph minors XXIII. Nash-Williams' immersion conjecture (118 citations)
  • Graph minors. XXI. Graphs with unique linkages (49 citations)
  • Graph Minors. XXII. Irrelevant vertices in linkage problems (48 citations)

In his most recent research, the most cited papers focused on:

  • Graph theory
  • Graph coloring
  • Discrete mathematics

His scientific interests lie mostly in Discrete mathematics, Combinatorics, Graph minor, Complement graph and Forbidden graph characterization. His Graph minor study combines topics in areas such as Universal graph, Null graph and Factor-critical graph. His studies in Universal graph integrate themes in fields like Graph coloring, Graph labeling, Robertson–Seymour theorem and Planar graph.

Neil Robertson has researched Null graph in several fields, including Butterfly graph, Wagner graph, Complete graph, Apex graph and Cubic graph. His Cubic graph study frequently draws connections between adjacent fields such as Petersen graph. The Factor-critical graph study combines topics in areas such as Bound graph, Vertex-transitive graph and Graph factorization.

Best Publications

  • Graph minors. II: Algorithmic aspects of tree-width

    Neil Robertson;Paul D. Seymour

  • Graph minors. XIII: the disjoint paths problem

    Neil Robertson;P. D. Seymour

  • The Strong Perfect Graph Theorem

    Maria Chudnovsky;Neil Robertson;Paul Douglas Seymour;Robin Thomas

  • Graph Minors. XX. Wagner's conjecture

    Neil Robertson;P. D. Seymour

  • Graph minors. V. Excluding a planar graph

    Neil Robertson;P D Seymour

  • The Four-Colour Theorem

    Neil Robertson;Daniel Sanders;Paul Seymour;Robin Thomas

  • Graph minors. III. Planar tree-width

    Neil Robertson;Paul D. Seymour

  • Graph minors: X. obstructions to tree-decomposition

    Neil Robertson;P. D. Seymour

  • Graph minors. I. Excluding a forest

    Neil Robertson;Paul Douglas Seymour

  • Quickly excluding a planar graph

    Neil Robertson;Paul Seymour;Robin Thomas;Robin Thomas

  • Graph minors. XVI. excluding a non-planar graph

    Neil Robertson;P. D. Seymour

  • Hadwiger's conjecture for K6-free graphs

    Neil Robertson;Paul Douglas Seymour;Robin Thomas

  • Directed Tree-Width

    Thor Johnson;Neil Robertson;P.D. Seymour;Robin Thomas

  • Graph Minors

    Neil Robertson;P.D. Seymour

  • Sachs' linkless embedding conjecture

    Neil Robertson;Paul Seymour;Robin Thomas

  • Graph minors. XI.: circuits on a surface

    Neil Robertson;P. D. Seymour

  • Graph minors. VII. Disjoint paths on a surface

    Neil Robertson;P. D. Seymour

  • Graph minors XXIII. Nash-Williams' immersion conjecture

    Neil Robertson;Paul Seymour

  • Graph minors. IV. Tree-width and well-quasi-ordering

    N. Robertson;P. D. Seymour

  • Packing directed circuits

    Bruce Reed;Neil Robertson;Paul Douglas Seymour;Robin Thomas

  • Regular ArticleGraph Minors: XV. Giant Steps

    Neil Robertson;P.D. Seymour

  • Permanents, Pfaffian orientations, and even directed circuits

    William McCuaig;Neil Robertson;Paul Douglas Seymour;Robin Thomas

Frequent Co-Authors

Paul Seymour
Paul Seymour Princeton University
Robin Thomas
Robin Thomas Georgia Institute of Technology
Bojan Mohar
Bojan Mohar Simon Fraser University
Maria Chudnovsky
Maria Chudnovsky Princeton University
Bruce Reed
Bruce Reed McGill University
Daniel Bienstock
Daniel Bienstock Columbia University
Jeff Kahn
Jeff Kahn Rutgers, The State University of New Jersey

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