World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
38
Citations
7514
World Ranking
2308
National Ranking
978

I. M. Isaacs 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 I. M. Isaacs 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: 208 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

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

I. M. Isaacs 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 I. M. Isaacs 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: 38 D-Index — 37th percentile

37% 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
  • 1971 - Fellow of Alfred P. Sloan Foundation

Overview

I. M. Isaacs was affiliated with the University of Wisconsin-Madison in the United States. Their research primarily focused on various aspects of mathematics, with significant contributions to finite group theory and algebra.

The scientist's work covered a range of subfields including discrete mathematics and combinatorics, algebra and number theory, artificial intelligence, geometry and topology, and cultural studies. Throughout their career, their main field of study remained mathematics.

Key research topics explored by Isaacs included:

  • Finite Group Theory Research
  • Coding theory and cryptography
  • Limits and Structures in Graph Theory
  • Advanced Topics in Algebra
  • Analytic Number Theory Research
  • Algebraic structures and combinatorial models
  • Geometric and Algebraic Topology

Isaacs published extensively in several notable mathematical journals and venues, including:

  • Journal of Algebra
  • Transactions of the American Mathematical Society Series B
  • Representation Theory of the American Mathematical Society
  • Archiv der Mathematik
  • American Mathematical Monthly

Among their recent publications were:

  • "Carter subgroups, characters and composition series", 2022, Transactions of the American Mathematical Society Series B
  • "Primes and conductors of characters", 2024, Journal of Algebra
  • "Local functions on finite groups", 2020, Representation Theory of the American Mathematical Society
  • "Counting maximal abelian subgroups of p-groups", 2022, Archiv der Mathematik
  • "Hall subgroups and fully extendible characters", 2020, Journal of Algebra

Isaacs collaborated frequently with a group of researchers including Gabriel Navarro, Lior Yanovski, William M. Cocke, and Ryan McCulloch. These collaborations reflected common interests in algebra and group theory.

During their career, Isaacs was recognized by professional organizations and received distinctions such as Fellow of the American Mathematical Society in 2013 and Fellow of the Alfred P. Sloan Foundation in 1971.

Best Publications

  • Character Theory of Finite Groups

    Unknown

  • Supercharacters and superclasses for algebra groups

    Persi Diaconis;I. M. Isaacs

  • Characters of Π-separable groups

    I.M Isaacs

  • Characters of Solvable and Symplectic Groups

    Unknown

  • A reduction theorem for the McKay conjecture

    I.M. Isaacs;Gunter Malle;Gabriel Navarro

  • Sums of Element Orders in Finite Groups

    Unknown

  • Supercharacters, symmetric functions in noncommuting variables, and related Hopf algebras

    Marcelo Aguiar;Carlos André;Carolina Benedetti;Nantel Bergeron

  • Finite Group Elements where No Irreducible Character Vanishes

    I.M Isaacs;Gabriel Navarro;Thomas R Wolf

  • A CHARACTERIZATION OF GROUPS IN TERMS OF THE DEGREES OF THEIR CHARACTERS

    I. M. Isaacs;D. S. Passman

  • Characters of Groups Associated with Finite Algebras

    Unknown

  • New refinements of the McKay conjecture for arbitrary finite groups

    I. M. Isaacs;Gabriel Navarro

  • Groups with Representations of Bounded Degree

    I. M. Isaacs;D. S. Passman

  • Irreducible Character Degrees and Normal Subgroups

    I.M. Isaacs;Greg Knutson

  • Fong characters in π-separable groups

    I.M Isaacs

  • On the Probability That a Group Element is p-Singular

    I.M. Isaacs;W.M. Kantor;N. Spaltenstein

  • Large orbits in actions of nilpotent groups

    Unknown

  • Generalized Vandermonde determinants and roots of unity of prime order

    Unknown

  • Character correspondences in solvable groups

    I.M Isaacs

  • Coprime Group Actions Fixing All Nonlinear Irreducible Characters

    Unknown

  • Semipermutable π-subgroups

    I. M. Isaacs

  • The average degree of an irreducible character of a finite group

    I. M. Isaacs;Maria Loukaki;Alexander Moretó

  • p-Supersolvability and actions on p-groups stabilizing certain subgroups

    Yakov Berkovich;I.M. Isaacs

  • Element orders and character codegrees

    I. M. Isaacs

  • On the Möbius function of a finite group

    Unknown

  • A note on groups of p-length 1∗

    I.M Isaacs;I.M Isaacs;Stephen D Smith;Stephen D Smith

  • Half-Transitive Automorphism Groups

    I. M. Isaacs;D. S. Passman

  • Partial characters of π-separable groups

    I. M. Isaacs

  • Character correspondences and irreducible induction and restriction

    I.M Isaacs;Gabriel Navarro

Frequent Co-Authors

Pham Huu Tiep
Pham Huu Tiep Rutgers, The State University of New Jersey
Gunter Malle
Gunter Malle Technical University of Kaiserslautern
Robert M. Guralnick
Robert M. Guralnick University of Southern California
Martin W. Liebeck
Martin W. Liebeck Imperial College London

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