World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
65
Citations
13185
World Ranking
396
National Ranking
26

Engineering and Technology

D-Index
55
Citations
9779
World Ranking
3048
National Ranking
197

John W. Barrett 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 John W. Barrett 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: 219 publications — 69th percentile

69% of scientists in this discipline score the same or lower.

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

John W. Barrett 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 John W. Barrett 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: 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.

Overview

John W. Barrett is affiliated with the University of Nottingham in the United Kingdom. Their research primarily spans the fields of Mathematics and Physics and Astronomy, with notable specialization in Mathematical Physics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics, Geometry and Topology, and Applied Mathematics.

Their work covers several main topics, including:

  • Spectral Theory in Mathematical Physics
  • Numerical methods in inverse problems
  • Quantum Chromodynamics and Particle Interactions
  • Nonlinear Waves and Solitons
  • Geometric and Algebraic Topology
  • Geometric Analysis and Curvature Flows

John W. Barrett has published papers in several scientific journals. Frequent publication venues include:

  • Journal of Physics A Mathematical and Theoretical
  • Journal of Geometry and Physics

Recent papers by Barrett are:

  • Fermion integrals for finite spectral triples, 2024, Journal of Physics A Mathematical and Theoretical
  • Finite spectral triples for the fuzzy torus, 2024, Journal of Geometry and Physics

Their frequent coauthor is James Gaunt.

Best Publications

  • Relativistic spin networks and quantum gravity

    John W. Barrett;Louis Crane

  • A Lorentzian signature model for quantum general relativity

    John W. Barrett;Louis Crane

  • Invariants of piecewise-linear 3-manifolds

    John W. Barrett;Bruce W. Westbury

  • Asymptotic analysis of the EPRL four-simplex amplitude

    John W. Barrett;R.J. Dowdall;Winston J. Fairbairn;Henrique Gomes

  • Finite Element Approximation of the Cahn--Hilliard Equation with Degenerate Mobility

    John W. Barrett;James F. Blowey;Harald Garcke

  • Lorentzian spin foam amplitudes: graphical calculus and asymptotics

    John W Barrett;Richard J Dowdall;Winston J Fairbairn;Frank Hellmann

  • Finite element approximation of the p -Laplacian

    John W. Barrett;Wenbin Liu

  • Asymptotic analysis of the Engle–Pereira–Rovelli–Livine four-simplex amplitude

    John W. Barrett;Richard J. Dowdall;Winston J. Fairbairn;Henrique Gomes

  • The Quantum Tetrahedron in 3 and 4 Dimensions

    John C. Baez;John W. Barrett

  • Spherical Categories

    John W. Barrett;Bruce W. Westbury

  • Fitted and Unfitted Finite-Element Methods for Elliptic Equations with Smooth Interfaces

    John W. Barrett;Charles M. Elliott

  • A parametric finite element method for fourth order geometric evolution equations

    John W. Barrett;Harald Garcke;Robert Nürnberg

  • Approximate symmetrization and Petrov-Galerkin methods for diffusion-convection problems

    J.W. Barrett;K.W. Morton

  • The Ponzano–Regge model

    John W Barrett;Ileana Naish-Guzman

  • Lorentzian version of the noncommutative geometry of the standard model of particle physics

    John W. Barrett

  • The asymptotics of an amplitude for the 4-simplex

    John W. Barrett;Ruth M. Williams

  • On the parametric finite element approximation of evolving hypersurfaces in R 3

    John W. Barrett;Harald Garcke;Robert Nürnberg

  • Finite element approximation of the Cahn-Hilliard equation with concentration dependent mobility

    John W. Barrett;James F. Blowey

  • Parametric Approximation of Willmore Flow and Related Geometric Evolution Equations

    John W. Barrett;Harald Garcke;Robert Nürnberg

  • Finite element approximation of the parabolic p -Laplacian

    John W. Barrett;W. B. Liu

  • Quasi-norm error bounds for the finite element approximation of a non-Newtonian flow

    John W. Barrett;W. B. Liu

  • Holonomy and path structures in general relativity and Yang-Mills theory

    John W. Barrett

Frequent Co-Authors

Harald Garcke
Harald Garcke University of Regensburg
Endre Süli
Endre Süli University of Oxford
Wenbin Liu
Wenbin Liu University of Kent
Charles M. Elliott
Charles M. Elliott University of Warwick
Peter Knabner
Peter Knabner University of Erlangen-Nuremberg
Andreas Prohl
Andreas Prohl University of Tübingen
John C. Baez
John C. Baez University of California, Riverside
Xiaobing Feng
Xiaobing Feng University of Tennessee at Knoxville
Rafael D. Sorkin
Rafael D. Sorkin Perimeter Institute
Carey Pope
Carey Pope Texas A&M University

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