World's Best Scientists 2026 revealed!
Yoshiharu Kohayakawa

Yoshiharu Kohayakawa

D-Index & Metrics

Mathematics

D-Index
39
Citations
4353
World Ranking
2254
National Ranking
18

Computer Science

D-Index
38
Citations
4247
World Ranking
10414
National Ranking
33

Yoshiharu Kohayakawa 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 Yoshiharu Kohayakawa 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: 177 publications — 52nd percentile

52% of scientists in this discipline score the same or lower.

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

Yoshiharu Kohayakawa 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 Yoshiharu Kohayakawa 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: 39 D-Index — 41st percentile

41% 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

  • 2019 - Fellow, The World Academy of Sciences

Overview

Yoshiharu Kohayakawa is affiliated with the Universidade de São Paulo in Brazil and has made significant contributions in the fields of Mathematics and Computer Science. Their research spans multiple subfields, including Computational Theory and Mathematics, Discrete Mathematics and Combinatorics, Geometry and Topology, Mathematical Physics, and Artificial Intelligence.

The primary topics of Yoshiharu Kohayakawa's work include:

  • Limits and Structures in Graph Theory
  • Advanced Graph Theory Research
  • Advanced Topology and Set Theory
  • Graph theory and applications
  • Graph Labeling and Dimension Problems
  • Complexity and Algorithms in Graphs
  • Stochastic processes and statistical mechanics

They have published extensively, with notable papers including:

  • "The anti-Ramsey threshold of complete graphs", 2023, Discrete Mathematics
  • "On strong Sidon sets of integers", 2021, Journal of Combinatorial Theory Series A
  • "The multicolour size-Ramsey number of powers of paths", 2020, Journal of Combinatorial Theory Series B
  • "Estimating parameters associated with monotone properties", 2020, Combinatorics Probability Computing
  • "Finding any given 2-factor in sparse pseudorandom graphs efficiently", 2020, Journal of Graph Theory

Yoshiharu Kohayakawa's frequent coauthors include:

  • Guilherme Oliveira Mota
  • Patrick Morris
  • Fábio Botler
  • Lucas Colucci
  • Jie Han

Their works appear often in certain publication venues, such as:

  • arXiv (Cornell University)
  • Journal of Graph Theory
  • Procedia Computer Science
  • SIAM Journal on Discrete Mathematics
  • Random Structures and Algorithms

Yoshiharu Kohayakawa has also authored books, including "LATIN 2020: Theoretical Informatics," published by Springer Science+Business Media in 2020.

Recognition of their work includes being named a Fellow of The World Academy of Sciences in 2019.

Best Publications

  • Szemerédi's regularity lemma for sparse graphs

    Y. Kohayakawa

  • Limits of permutation sequences

    Carlos Hoppen;Yoshiharu Kohayakawa;Carlos Gustavo Moreira;BaláZs RáTh

  • OnK 4-free subgraphs of random graphs

    Yoshiharu Kohayakawa;Tomasz Luczak;Vojtech Rödl

  • The Induced Size-Ramsey Number of Cycles

    P. E. Haxell;Y. Kohayakawa;T. Łuczak

  • Arithmetic progressions of length three in subsets of a random set

    Yoshiharu Kohayakawa;Tomasz Łuczak;Vojtěch Rödl

  • Szemerédi’s Regularity Lemma and Quasi-randomness

    Y. Kohayakawa;V. Rödl

  • Hypergraphs, Quasi-randomness, and Conditions for Regularity

    Yoshiharu Kohayakawa;Vojtěch Rödl;Jozef Skokan

  • Weak hypergraph regularity and linear hypergraphs

    Yoshiharu Kohayakawa;Brendan Nagle;Vojtěch Rödl;Mathias Schacht

  • The Evolution of Random Subgraphs of the Cube

    B. Bollobás;Y. Kohayakawa;T. Łuczak

  • Measures of pseudorandomness for finite sequences: typical values

    Noga Alon;Yoshiharu Kohayakawa;Christian Mauduit;Carlos Gustavo T. de Moreira

  • Sparse partition universal graphs for graphs of bounded degree

    Yoshiharu Kohayakawa;Vojtěch Rödl;Mathias Schacht;Endre Szemerédi

  • Uma Introdução Sucinta à Teoria dos Grafos

    Paulo Feofiloff;Yoshiharu Kohayakawa;Yoshiko Wakabayashi

  • Tura´n's extremal problem in random graphs: forbidding even cycles

    P. E. Haxell;Y. Kohayakawa;T. Łuczak

  • Threshold functions for asymmetric Ramsey properties involving cycles

    Y. Kohayakawa;B. Kreuter

  • Invariant measures for a two-species asymmetric process

    P. A. Ferrari;L. R. G. Fontes;Y. Kohayakawa

  • Regular pairs in sparse random graphs I

    Y. Kohayakawa;V. Rödl

  • Finding Skew Partitions Efficiently

    Celina M.H. de Figueiredo;Sulamita Klein;Yoshiharu Kohayakawa;Bruce A. Reed

  • Universality and tolerance

    N. Alon;M. Capalbo;Y. Kohayakawa;V. Rodl

  • An Extremal Problem For Random Graphs And The Number Of Graphs With Large Even-Girth

    Yoshiharu Kohayakawa;Bernd Kreuter;Angelika Steger

  • Blow-up lemmas for sparse graphs

    Peter Allen;Julia Böttcher;Hiep Hàn;Yoshiharu Kohayakawa

Frequent Co-Authors

Vojtěch Rödl
Vojtěch Rödl Emory University
Béla Bollobás
Béla Bollobás University of Memphis
Tomasz Łuczak
Tomasz Łuczak Adam Mickiewicz University in Poznań
Andrzej Ruciński
Andrzej Ruciński Adam Mickiewicz University in Poznań
Noga Alon
Noga Alon Tel Aviv University
Endre Szemerédi
Endre Szemerédi Alfréd Rényi Institute of Mathematics
Daniel Král
Daniel Král Masaryk University
Prabhakar Raghavan
Prabhakar Raghavan Google (United States)
Graham Brightwell
Graham Brightwell London School of Economics and Political Science

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