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D-Index & Metrics

Mathematics

D-Index
36
Citations
4179
World Ranking
2692
National Ranking
1105

Thomas Lam 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 Thomas Lam 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: 117 publications — 20th percentile

20% of scientists in this discipline score the same or lower.

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

Thomas Lam 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 Thomas Lam 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: 36 D-Index — 29th percentile

29% 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

  • 2009 - Fellow of Alfred P. Sloan Foundation

Overview

Thomas Lam is affiliated with the University of Michigan-Ann Arbor in the United States and works primarily in the field of mathematics. Their research encompasses multiple subfields, including Geometry and Topology, Discrete Mathematics and Combinatorics, Mathematical Physics, Algebra and Number Theory, and Nuclear and High Energy Physics.

The main topics covered by their work include Advanced Combinatorial Mathematics, Algebraic structures and combinatorial models, Advanced Algebra and Geometry, Geometric and Algebraic Topology, Black Holes and Theoretical Physics, Advanced Topics in Algebra, and Algebraic Geometry and Number Theory.

Frequent coauthors collaborating with Thomas Lam include Pavel Galashin, Nima Arkani-Hamed, Song He, David E Speyer, and Seung Jin Lee.

They have published multiple papers in several notable venues, with recurring contributions to arXiv (Cornell University), Advances in Mathematics, Duke Mathematical Journal, Journal of High Energy Physics, and the OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information).

Recent researched papers include:

  • Positive geometries and canonical forms (2023) in OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
  • Non-perturbative geometries for planar N ℕ = 4 SYM amplitudes (2021) in Deep Blue (University of Michigan)
  • Binary geometries, generalized particles and strings, and cluster algebras (2023) in Physical review. D/Physical review. D.
  • Cluster Configuration Spaces of Finite Type (2021) in Symmetry Integrability and Geometry Methods and Applications
  • Likelihood degenerations (2023) in Advances in Mathematics

Thomas Lam has been recognized as a Fellow of the Alfred P. Sloan Foundation in 2009.

Best Publications

  • Positive Geometries and Canonical Forms

    Nima Arkani-Hamed;Yuntao Bai;Thomas Lam

  • Positroid varieties: juggling and geometry

    Allen Knutson;Thomas Lam;David E. Speyer

  • Alcoved Polytopes, I

    Thomas Lam;Alexander Postnikov

  • Quantum cohomology of G/P and homology of affine Grassmannian

    Thomas Lam;Mark Shimozono

  • AFFINE STANLEY SYMMETRIC FUNCTIONS

    Thomas Lam

  • Schubert polynomials for the affine Grassmannian

    Thomas Lam

  • Stringy Canonical Forms

    Nima Arkani-Hamed;Nima Arkani-Hamed;Song He;Thomas Lam;Thomas Lam

  • Positroid varieties I: juggling and geometry

    Allen Knutson;Thomas Lam;David E Speyer

  • Combinatorial Hopf Algebras and K-Homology of Grassmanians

    Thomas Lam;Pavlo Pylyavskyy

  • Totally nonnegative Grassmannian and Grassmann polytopes

    Thomas Lam

  • Schur positivity and Schur log-concavity

    Thomas Lam;Alexander Postnikov;Pavlo Pylyavskyy

  • Non-perturbative geometries for planar $\mathcal{N}=4$ SYM amplitudes

    Nima Arkani-Hamed;Nima Arkani-Hamed;Thomas Lam;Thomas Lam;Marcus Spradlin

  • Back stable Schubert calculus

    Thomas Lam;Seung Jin Lee;Mark Shimozono

  • Positive Configuration Space

    Nima Arkani-Hamed;Nima Arkani-Hamed;Thomas Lam;Thomas Lam;Marcus Spradlin

  • Laurent phenomenon algebras

    Thomas Lam;Pavlo Pylyavskyy

  • K -theory Schubert calculus of the affine Grassmannian

    Thomas Lam;Anne Schilling;Mark Shimozono

  • Projections of Richardson varieties

    Allen Knutson;Thomas Lam;David E Speyer

  • k-Schur Functions and Affine Schubert Calculus

    Thomas Lam;Luc Lapointe;Jennifer Morse;Anne Schilling

  • Total positivity in loop groups, I: Whirls and curls

    Thomas Lam;Pavlo Pylyavskyy

  • Total positivity for cominuscule Grassmannians

    Thomas Lam;Lauren Williams

  • Affine Insertion and Pieri Rules for the Affine Grassmannian

    Thomas Lam;Luc Lapointe;Jennifer Morse;Mark Shimozono

  • Alcoved Polytopes II

    Thomas Lam;Alexander Postnikov

Frequent Co-Authors

Mark Shimozono
Mark Shimozono Virginia Tech
Nima Arkani-Hamed
Nima Arkani-Hamed Institute for Advanced Study
David E Speyer
David E Speyer University of Michigan–Ann Arbor
Frank Sottile
Frank Sottile Texas A&M University
Lauren Williams
Lauren Williams Harvard University
Victor Reiner
Victor Reiner University of Minnesota
Meinolf Geck
Meinolf Geck University of Stuttgart

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