World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
65
Citations
27653
World Ranking
377
National Ranking
25

Engineering and Technology

D-Index
67
Citations
28024
World Ranking
1263
National Ranking
79

Iain S. Duff 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 Iain S. Duff 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: 82 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: 263 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Iain S. Duff 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 Iain S. Duff 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: 137 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: 65 D-Index — 90th percentile

90% 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

  • 2010 - SIAM Fellow For contributions to sparse matrix computations.

Overview

Iain S. Duff is affiliated with the Rutherford Appleton Laboratory in the United Kingdom. Their research spans several fields, primarily focused on computer science, physics and astronomy, and engineering.

The main areas of study for this researcher include computational theory and mathematics, artificial intelligence, computer networks and communications, statistical and nonlinear physics, and electrical and electronic engineering.

Their work covers topics such as matrix theory and algorithms, tensor decomposition and applications, numerical methods and algorithms, complex network analysis techniques, advanced clustering algorithms research, opinion dynamics and social influence, and error correcting code techniques.

Recent papers authored by Iain S. Duff include:

  • A New Sparse LDLT Solver Using A Posteriori Threshold Pivoting, 2020, SIAM Journal on Scientific Computing
  • Row Replicated Block Cimmino, 2023, SIAM Journal on Scientific Computing

In addition, Iain S. Duff is listed as a coauthor on a paper titled Design and Implementation of a Parallel Markowitz Threshold Algorithm, published in 2020 in the SIAM Journal on Matrix Analysis and Applications.

Frequent coauthors of Iain S. Duff include:

  • Philippe Leleux
  • Daniel Ruiz
  • F. Sukru Torun
  • Jonathan Hogg
  • Florent Lopez

Publications frequently appear in the following venues:

  • SIAM Journal on Scientific Computing
  • SIAM Journal on Matrix Analysis and Applications

Iain S. Duff was recognized as a SIAM Fellow in 2010 for contributions to sparse matrix computations.

Best Publications

  • A Fully Asynchronous Multifrontal Solver Using Distributed Dynamic Scheduling

    Patrick R. Amestoy;Iain S. Duff;Jean-Yves L'Excellent;Jacko Koster

  • A set of level 3 basic linear algebra subprograms

    J. J. Dongarra;Jeremy Du Croz;Sven Hammarling;I. S. Duff

  • Direct methods for sparse matrices

    Iain S Duff;Albert M Erisman;John K Reid

  • The Multifrontal Solution of Indefinite Sparse Symmetric Linear

    I. S. Duff;J. K. Reid

  • Multifrontal parallel distributed symmetric and unsymmetric solvers

    Patrick R. Amestoy;Iain S. Duff;Jean-Yves l'Excellent

  • An Approximate Minimum Degree Ordering Algorithm

    Patrick R. Amestoy;Timothy A. Davis;Iain S. Duff

  • An Updated Set of Basic Linear Algebra Subprograms (BLAS)

    Susan Blackford;James Demmel;Jack Dongarra;Iain Duff

  • Sparse matrix test problems

    I. S. Duff;Roger G. Grimes;John G. Lewis

  • Solving Linear Systems on Vector and: Shared Memory Computers

    Jack J. Dongarra;Iain S. Duff;Danny C. Sorensen;Henk Van Der Vorst

  • An Unsymmetric-Pattern Multifrontal Method for Sparse LU Factorization

    Timothy A. Davis;Iain S. Duff

  • The effect of ordering on preconditioned conjugate gradients

    I. S. Duff;G. A. Meurant

  • A combined unifrontal/multifrontal method for unsymmetric sparse matrices

    Timothy A. Davis;Iain S. Duff

  • MA57---a code for the solution of sparse symmetric definite and indefinite systems

    Iain S. Duff

  • Algorithm 837: AMD, an approximate minimum degree ordering algorithm

    Patrick R. Amestoy;Timothy A. Davis;Iain S. Duff

  • On Algorithms For Permuting Large Entries to the Diagonal of a Sparse Matrix

    I. S. Duff;J. Koster

  • A survey of sparse matrix research

    I.S. Duff

  • The Design and Use of Algorithms for Permuting Large Entries to the Diagonal of Sparse Matrices

    Iain S. Duff;Jacko Koster

  • The Multifrontal Solution of Unsymmetric Sets of Linear Equations

    I. S. Duff;J. K. Reid

  • Algorithm 679: A set of level 3 basic linear algebra subprograms: model implementation and test programs

    J. J. Dongarra;Jermey Du Cruz;Sven Hammarling;I. S. Duff

  • MA28 --- A set of Fortran subroutines for sparse unsymmetric linear equations

    IS Duff

  • Users' guide for the Harwell-Boeing sparse matrix collection (Release 1)

    Iain S Duff;RG Grimes;JG Lewis

Frequent Co-Authors

John Reid
John Reid Rutherford Appleton Laboratory
Jack Dongarra
Jack Dongarra University of Tennessee at Knoxville
Timothy A. Davis
Timothy A. Davis Texas A&M University
Danny C. Sorensen
Danny C. Sorensen Rice University
Xiaoye S. Li
Xiaoye S. Li Lawrence Berkeley National Laboratory
Zhong-Zhi Bai
Zhong-Zhi Bai Chinese Academy of Sciences
Nicholas I. M. Gould
Nicholas I. M. Gould University of Oxford
Michael A. Heroux
Michael A. Heroux Sandia National Laboratories
James Demmel
James Demmel University of California, Berkeley
Nicholas J. Higham
Nicholas J. Higham University of Manchester

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