World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
47
Citations
16396
World Ranking
1236
National Ranking
4

Computer Science

D-Index
47
Citations
16282
World Ranking
6310
National Ranking
15

Rodney G. Downey 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 Rodney G. Downey 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: 389 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

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

Rodney G. Downey 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 Rodney G. Downey 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: 47 D-Index — 66th percentile

66% 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

Rodney G. Downey is affiliated with Victoria University of Wellington in New Zealand. Their research spans across the fields of Computer Science and Mathematics, with a focus on Computational Theory and Mathematics, Mathematical Physics, and related subfields.

The main topics of their work include:

  • Computability, Logic, AI Algorithms
  • Advanced Topology and Set Theory
  • Semigroups and Automata Theory
  • Mathematical and Theoretical Analysis
  • Benford's Law and Fraud Detection
  • Cellular Automata and Applications
  • Mathematical Dynamics and Fractals

Rodney G. Downey has published multiple recent papers including:

  • "Computably Compact Metric Spaces," 2023, Bulletin of Symbolic Logic
  • "Graphs are not universal for online computability," 2020, Journal of Computer and System Sciences
  • "Punctually presented structures II: comparing presentations," 2024, Archive for Mathematical Logic
  • "Relativizing computable categoricity," 2021, Proceedings of the American Mathematical Society
  • "Cousin's lemma in second-order arithmetic," 2022, Proceedings of the American Mathematical Society Series B

Notable frequent co-authors include:

  • Alexander Melnikov
  • Noam Greenberg
  • Daniel Turetsky
  • Keng Meng Ng
  • Matthew Harrison-Trainor

Frequent publication venues where their work appears include:

  • arXiv (Cornell University)
  • Journal of Symbolic Logic
  • Bulletin of Symbolic Logic
  • Journal of Computer and System Sciences
  • Archive for Mathematical Logic

Rodney G. Downey has a forthcoming book titled Computable Structure Theory to be published by Springer Nature in 2025.

In 2013, they were recognized as a Fellow of the American Mathematical Society.

Best Publications

  • Parameterized Complexity

    Rodney G. Downey;M. R. Fellows

  • Fundamentals of Parameterized Complexity

    Rodney G. Downey;Michael R. Fellows

  • Algorithmic Randomness and Complexity

    Rod Downey;Denis Hirschfeldt

  • Fixed-parameter tractability and completeness II: on completeness for W [1]

    Rod G. Downey;Michael R. Fellows

  • On problems without polynomial kernels

    Hans L. Bodlaender;Rodney G. Downey;Michael R. Fellows;Danny Hermelin

  • Fixed-Parameter Tractability and Completeness I: Basic Results

    Rod G. Downey;Michael R. Fellows

  • Parameterized complexity: A framework for systematically confronting computational intractability.

    Rodney G. Downey;Michael R. Fellows;Ulrike Stege

  • Parameterized Computational Feasibility

    Rodney G. Downey;Michael R. Fellows

  • Fixed-parameter tractability and completeness IV: On completeness for W[P] and PSPACE analogues

    Karl A. Abrahamson;Rodney G. Downey;Michael R. Fellows

  • Fixed Parameter Tractability and Completeness.

    Rodney G. Downey;Michael R. Fellows

  • Algorithmic randomness and complexity. Theory and Applications of Computability

    Rodney G. Downey;Denis R. Hirschfeldt

  • Fixed-parameter intractability

    R.G. Downey;M.R. Fellows

  • Cutting Up Is Hard To Do: The Parameterised Complexity of k-Cut and Related Problems

    Rodney G. Downey;Vladimir Estivill-Castro;Michael Fellows;Elena Prieto

  • Advice classes of parameterized tractability

    Liming Cai;Jianer Chen;Rodney G. Downey;Michael R. Fellows

  • Parameterized complexity analysis in computational biology

    Hans L. Bodlaender;Rodney G. Downey;Michael R. Fellows;Michael T. Hallett

  • The Parametrized Complexity of Some Fundamental Problems in Coding Theory

    Rod G. Downey;Michael R. Fellows;Alexander Vardy;Geoff Whittle

  • On the parameterized complexity of short computation and factorization

    Liming Cai;Jianer Chen;Rodney G. Downey;Michael R. Fellows

  • On Problems without Polynomial Kernels (Extended Abstract)

    Hans L. Bodlaender;Rodney G. Downey;Michael R. Fellows;Danny Hermelin

  • Array nonrecursive sets and multiple permitting arguments

    Rod Downey;Carl Jockusch;Michael Stob

  • Parameterized complexity for the skeptic

    R. Downey

  • Cutting Up is Hard to Do: the Parameterized Complexity of k-cut and Related Problems.

    Rodney G. Downey;Vladimir Estivill-Castro;Michael R. Fellows;Elena Prieto

Frequent Co-Authors

Michael R. Fellows
Michael R. Fellows Lebanese American University
Carl G. Jockusch
Carl G. Jockusch University of Illinois at Urbana-Champaign
Hans L. Bodlaender
Hans L. Bodlaender Utrecht University
Moshe Y. Vardi
Moshe Y. Vardi Rice University
Martin Grohe
Martin Grohe RWTH Aachen University
Jeffrey B. Remmel
Jeffrey B. Remmel University of California, San Diego
Gerhard J. Woeginger
Gerhard J. Woeginger RWTH Aachen University
Lance Fortnow
Lance Fortnow Illinois Institute of Technology
Frances A. Rosamond
Frances A. Rosamond University of Bergen
Jianer Chen
Jianer Chen Texas A&M University

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