World's Best Scientists 2026 revealed!
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Mathematics
Japan
2023

D-Index & Metrics

Mathematics

D-Index
65
Citations
18997
World Ranking
385
National Ranking
5

Wataru Takahashi 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 Wataru Takahashi 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: 269 publications — 81st percentile

81% of scientists in this discipline score the same or lower.

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

Wataru Takahashi 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 Wataru Takahashi 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.

Research.com Recognitions

  • 2023 - Research.com Mathematics in Japan Leader Award

Overview

Wataru Takahashi was a researcher affiliated with the Tokyo Institute of Technology in Japan. Their work spanned multiple disciplines, with a particular focus on medicine, mathematics, and computer science.

Their research addressed several key topics including optimization and variational analysis, advanced optimization algorithms research, fixed point theorems analysis, influenza virus research studies, COVID-19 diagnosis using artificial intelligence, respiratory viral infections research, as well as banking stability, regulation, and efficiency.

Takahashi contributed to numerous publications across various fields, as indicated by their presence in major journal venues such as:

  • Journal of Medical Internet Research
  • Internal Medicine
  • Electronic Journal of Foreign Language Teaching
  • Mathematics
  • bioRxiv (Cold Spring Harbor Laboratory)

Several frequent coauthors appeared alongside Takahashi in their works, demonstrating collaborative efforts in research projects. These coauthors included:

  • Sho Okiyama
  • Memori Fukuda
  • Masashi Sode
  • Masahiro Ikeda
  • Hiroaki Kato

Their published papers covered a range of subjects from medical diagnostics to mathematical theory. Notable recent papers include:

  • "Examining the Use of an Artificial Intelligence Model to Diagnose Influenza: Development and Validation Study", 2022, Journal of Medical Internet Research
  • "Association of Systemic Adverse Reactions and Serum SARS-CoV-2 Spike Protein Antibody Levels after Administration of BNT162b2 mRNA COVID-19 Vaccine", 2022, Internal Medicine
  • "Out-of-Class Extensive Reading in Japanese as a Second Language: Enhancing Learner Autonomy Beyond the Classroom", 2020, Electronic Journal of Foreign Language Teaching
  • "A Strong Convergence Theorem under a New Shrinking Projection Method for Finite Families of Nonlinear Mappings in a Hilbert Space", 2020, Mathematics
  • "Diagnosing Influenza Infection from Pharyngeal Images using Deep Learning: Machine Learning Approach", 2022, bioRxiv (Cold Spring Harbor Laboratory)

In addition to journal articles, Takahashi authored book publications, including a title published by Springer International Publishing:

  • "Monetary Policies in the Age of Uncertainty", 2021

Their subfields of study included computational theory and mathematics, epidemiology, finance, numerical analysis, and geometry and topology, reflecting a diverse research portfolio.

Best Publications

  • Strong Convergence of a Proximal-Type Algorithm in a Banach Space

    Shoji Kamimura;Wataru Takahashi

  • Strong convergence theorems for nonexpansive mappings and nonexpansive semigroups

    Kazuhide Nakajo;Wataru Takahashi

  • Weak Convergence Theorems for Nonexpansive Mappings and Monotone Mappings

    W. Takahashi;M. Toyoda

  • Viscosity approximation methods for equilibrium problems and fixed point problems in Hilbert spaces

    Satoru Takahashi;Wataru Takahashi

  • A convexity in metric space and nonexpansive mappings, I

    Unknown

  • Fixed point theorems for multivalued mappings on complete metric spaces

    Noriko Mizoguchi;Wataru Takahashi

  • A strong convergence theorem for relatively nonexpansive mappings in a Banach space

    Shin-ya Matsushita;Wataru Takahashi

  • Weak Convergence Theorem by an Extragradient Method for Nonexpansive Mappings and Monotone Mappings

    N. Nadezhkina;W. Takahashi

  • Strong convergence of approximated sequences for nonexpansive mappings in Banach spaces

    Wataru Takahashi;Naoki Shioji

  • Approximation of common fixed points of a countable family of nonexpansive mappings in a Banach space

    Koji Aoyama;Yasunori Kimura;Wataru Takahashi;Masashi Toyoda

  • NONCONVEX MINIMIZATION THEOREMS AND FIXED POINT THEOREMS IN COMPLETE METRIC SPACES

    Osamu Kada;Tomonari Suzuki;Wataru Takahashi

  • STRONG AND WEAK CONVERGENCE THEOREMS FOR EQUILIBRIUM PROBLEMS AND RELATIVELY NONEXPANSIVE MAPPINGS IN BANACH SPACES

    Wataru Takahashi;Kei Zembayashi

  • Strong convergence theorem for a generalized equilibrium problem and a nonexpansive mapping in a Hilbert space

    Satoru Takahashi;Wataru Takahashi

  • Strong convergence theorems by hybrid methods for families of nonexpansive mappings in Hilbert spaces

    Wataru Takahashi;Yukio Takeuchi;Rieko Kubota

  • Variational inequalities and complementarity problems

    Shigeru Itoh;Wataru Takahashi;Kenjiro Yanagi

  • Weak and Strong Convergence Theorems for a Nonexpansive Mapping and an Equilibrium Problem

    A. Tada;W. Takahashi

  • Strong convergence theorems for nonexpansive mappings and inverse-strongly monotone mappings

    Hideaki Iiduka;Wataru Takahashi

  • Fixed point theorems for a class of nonlinear mappings related to maximal monotone operators in Banach spaces

    Fumiaki Kohsaka;Wataru Takahashi

  • Approximating Solutions of Maximal Monotone Operators in Hilbert Spaces

    Unknown

  • On Reich's strong convergence theorems for resolvents of accretive operators

    Wataru Takahashi;Yoichi Ueda

  • Existence and Approximation of Fixed Points of Firmly Nonexpansive-Type Mappings in Banach Spaces

    Fumiaki Kohsaka;Wataru Takahashi

  • Strong Convergence to Common Fixed Points of Families of Nonexpansive Mappings

    Tomoo Shimizu;Wataru Takahashi

Frequent Co-Authors

Jen-Chih Yao
Jen-Chih Yao China Medical University
Anthony To-Ming Lau
Anthony To-Ming Lau University of Alberta

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Choosing the right path depends on career goals, time commitment, and the desire to integrate mathematical knowledge with practical business or data skills. These online degree options reflect the growing intersection between mathematics and other disciplines in today’s job market.

Best Scientists Citing Wataru Takahashi