World's Best Scientists 2026 revealed!
Tohru Ozawa

Tohru Ozawa

D-Index & Metrics

Mathematics

D-Index
48
Citations
7480
World Ranking
1222
National Ranking
15

Tohru Ozawa 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 Tohru Ozawa 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: 82 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: 304 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

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

Tohru Ozawa 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 Tohru Ozawa 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: 137 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: 48 D-Index — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

Overview

Tohru Ozawa is affiliated with Waseda University in Japan and has contributed extensively to the field of mathematics. Their research spans multiple subfields, with a primary focus on mathematical physics, applied mathematics, computational theory and mathematics, control and systems engineering, and statistical and nonlinear physics.

The main topics of Ozawa's work include:

  • Advanced Mathematical Physics Problems
  • Spectral Theory in Mathematical Physics
  • Navier-Stokes Equation Solutions
  • Numerical Methods in Inverse Problems
  • Advanced Mathematical Modeling in Engineering
  • Stability and Controllability of Differential Equations
  • Nonlinear Partial Differential Equations

The scientist has collaborated frequently with several coauthors, including:

  • Jishan Fan (14 publications)
  • Durvudkhan Suragan (11 publications)
  • Masayuki Hayashi (6 publications)
  • Kenta Tomioka (6 publications)
  • Ryunosuke Kusaba (6 publications)

Ozawa's recent papers reflect contributions to various mathematical problems and inequalities. Notable publications include:

  • "Rigorous analysis of the unified transform method and long-range instabilities for the inhomogeneous time-dependent Schrödinger equation on the quarter-plane," 2023, Mathematische Annalen
  • "Sharp remainder of the Poincaré inequality," 2020, Proceedings of the American Mathematical Society
  • "Zakharov system in two space dimensions," 2021, Nonlinear Analysis
  • "Poincaré inequalities with exact missing terms on homogeneous groups," 2020, Journal of the Mathematical Society of Japan
  • "The Cauchy Problem for the Logarithmic Schrödinger Equation Revisited," 2024, Annales Henri Poincaré

The venues where Ozawa has frequently published include:

  • arXiv (Cornell University) - 20 publications
  • Partial Differential Equations and Applications - 5 publications
  • Funkcialaj Ekvacioj - 3 publications
  • AIMS Mathematics - 3 publications
  • Journal of Mathematical Analysis and Applications - 2 publications

In addition to journal articles, Ozawa has contributed to academic books, including one published by Springer Nature titled Advances in Harmonic Analysis and Partial Differential Equations in 2020.

Best Publications

  • Long range scattering for nonlinear Schrödinger equations in one space dimension

    Tohru Ozawa

  • On Critical Cases of Sobolev′s Inequalities

    T. Ozawa

  • On the derivative nonlinear Schro¨dinger equation

    Nakao Hayashi;Tohru Ozawa

  • Long range scattering for non-linear Schrödinger and Hartree equations in space dimension n≥2

    J. Ginibre;T. Ozawa

  • Endpoint Strichartz estimates and global solutions for the nonlinear Dirac equation

    Shuji Machihara;Makoto Nakamura;Kenji Nakanishi;Tohru Ozawa

  • Nonrelativistic limit in the energy space for nonlinear Klein-Gordon equations

    Shuji Machihara;Kenji Nakanishi;Tohru Ozawa

  • On the nonlinear Schrödinger equations of derivative type

    T. Ozawa

  • Interpolation inequalities in Besov spaces

    Shuji Machihara;Shuji Machihara;Tohru Ozawa

  • Finite energy solutions of nonlinear Schro¨dinger equations of derivative type

    Nakao Hayashi;Tohru Ozawa

  • Remarks on nonlinear Schrödinger equations in one space dimension

    Nakao Hayashi;Tohru Ozawa;Tohru Ozawa;Tohru Ozawa;J. L. Bona

  • SOBOLEV INEQUALITIES WITH SYMMETRY

    Yonggeun Cho;Tohru Ozawa

  • Small global solutions and the nonrelativistic limit for the nonlinear Dirac equation

    Shuji Machihara;Kenji Nakanishi;Tohru Ozawa

  • Nonlinear Schrödinger Equations in the Sobolev Space of Critical Order

    M Nakamura;T Ozawa

  • Nonlinear Schrödinger equation with a point defect

    Reika Fukuizumi;Masahito Ohta;Tohru Ozawa

  • Global existence and asymptotic behavior of solutions for the Klein-Gordon equations with quadratic nonlinearity in two space dimensions

    Tohru Ozawa;Kimitoshi Tsutaya;Yoshio Tsutsumi

  • Existence and Smoothing Effect of Solutions for the Zakharov Equations

    Tohru Ozawa;Yoshio Tsutsumi

  • On the Cauchy Problem of Fractional Schrödinger Equation with Hartree Type Nonlinearity

    Yonggeun Cho;Hichem Hajaiej;Gyeongha Hwang;Tohru Ozawa

  • Well-posedness in energy space for the Cauchy problem of the Klein-Gordon-Zakharov equations with different propagation speeds in three space dimensions

    Tohru Ozawa;Kimitoshi Tsutaya;Yoshio Tsutsumi

  • On the Semirelativistic Hartree‐Type Equation

    Yonggeun Cho;Tohru Ozawa

  • On the existence of the wave operators for a class of nonlinear Schrödinger equations

    J. Ginibre;T. Ozawa;G. Velo

  • Necessary and Sucient Conditions for the Fractional Gagliardo-Nirenberg Inequalities and Applications to Navier-Stokes and Generalized Boson Equations

    Hichem Hajaiej;Luc Molinet;Tohru Ozawa;Baoxiang Wang

Frequent Co-Authors

Yoshikazu Giga
Yoshikazu Giga University of Tokyo
Nakao Hayashi
Nakao Hayashi Osaka University
Takayuki Nakagawa
Takayuki Nakagawa Kyoto University
Michael Ruzhansky
Michael Ruzhansky Ghent University
Kenji Nakanishi
Kenji Nakanishi Kyoto University
Yusuke Yamauchi
Yusuke Yamauchi University of Queensland
Shuji Kaneko
Shuji Kaneko Kyoto University
Hideo Kozono
Hideo Kozono Waseda University
Kazunaga Tanaka
Kazunaga Tanaka Waseda University

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