Toshiyuki Sugawa

Toshiyuki Sugawa

Tohoku University

H-index: 20

Asia-Japan

About Toshiyuki Sugawa

Toshiyuki Sugawa, With an exceptional h-index of 20 and a recent h-index of 11 (since 2020), a distinguished researcher at Tohoku University, specializes in the field of Complex Analysis.

His recent articles reflect a diverse array of research interests and contributions to the field:

Nonlinear resolvents and decreasing Loewner chains

Kleinian groups and geometric function theory

Uniformly perfect sets, Hausdorff dimension, and conformal capacity

Peschl-Minda derivatives and convergent Wick star products on the disk, the sphere and beyond

On Geometric Properties of the Ratio of Two Hypergeometric Functions

Conformally invariant complete metrics

Successive coefficients for functions in the spirallike family

Universal convexity and range problems of shifted hypergeometric functions

Toshiyuki Sugawa Information

University

Position

Professor Graduate School of Information Sciences

Citations(all)

1429

Citations(since 2020)

531

Cited By

1132

hIndex(all)

20

hIndex(since 2020)

11

i10Index(all)

42

i10Index(since 2020)

16

Email

University Profile Page

Tohoku University

Google Scholar

View Google Scholar Profile

Toshiyuki Sugawa Skills & Research Interests

Complex Analysis

Top articles of Toshiyuki Sugawa

Title

Journal

Author(s)

Publication Date

Nonlinear resolvents and decreasing Loewner chains

The Journal of Geometric Analysis

Ikkei Hotta

Sebastian Schleißinger

Toshiyuki Sugawa

2024/4

Kleinian groups and geometric function theory

Hiroshige Shiga

Toshiyuki Sugawa

2024/3/19

Uniformly perfect sets, Hausdorff dimension, and conformal capacity

The Journal of Geometric Analysis

Oona Rainio

Toshiyuki Sugawa

Matti Vuorinen

2024/6

Peschl-Minda derivatives and convergent Wick star products on the disk, the sphere and beyond

arXiv preprint arXiv:2308.01101

Michael Heins

Annika Moucha

Oliver Roth

Toshiyuki Sugawa

2023/8/2

On Geometric Properties of the Ratio of Two Hypergeometric Functions

Computational Methods and Function Theory

Toshiyuki Sugawa

Li-Mei Wang

2023/7/11

Conformally invariant complete metrics

Mathematical Proceedings of the Cambridge Philosophical Society

Toshiyuki Sugawa

Matti Vuorinen

Tanran Zhang

2023/3

Successive coefficients for functions in the spirallike family

Bulletin des Sciences Mathématiques

Vibhuti Arora

Saminathan Ponnusamy

Swadesh Kumar Sahoo

Toshiyuki Sugawa

2023/11/1

Universal convexity and range problems of shifted hypergeometric functions

arXiv preprint arXiv:2309.02934

Toshiyuki Sugawa

Li-Mei Wang

Chengfa Wu

2023/9/6

Moduli of quadrilaterals and quasiconformal reflection

Journal of Mathematical Analysis and Applications

Semen Nasyrov

Toshiyuki Sugawa

Matti Vuorinen

2023/8/15

Harmonic spirallike functions and harmonic strongly starlike functions

Monatshefte für Mathematik

Xiu-Shuang Ma

Saminathan Ponnusamy

Toshiyuki Sugawa

2022/10

Geometric deduction of the solutions to modular equations

The Ramanujan Journal

Md Shafiul Alam

Toshiyuki Sugawa

2022/10

On the ninth coefficient of the inverse of a convex function

Mathematics

Toshiyuki Sugawa

2021/3/25

Sharp inequalities for logarithmic coefficients and their applications

Bulletin des Sciences Mathématiques

Saminathan Ponnusamy

Toshiyuki Sugawa

2021/2/1

Completely monotone sequences and harmonic mappings

arXiv preprint arXiv:2102.00138

Bo-Yong Long

Toshiyuki Sugawa

Qi-Han Wang

2021/1/30

On the Fourth Coefficient of the Inverse of a Starlike Function of Positive Order

Interdisciplinary information sciences

Toshiyuki Sugawa

Li-Mei Wang

2021

Aharonov invariants revisited

Analysis and Mathematical Physics

Toshiyuki Sugawa

2020/9

On the hyperbolic distance of n-times punctured spheres

Journal d'Analyse Mathématique

Toshiyuki Sugawa

Matti Vuorinen

Tanran Zhang

2020/9

Geometric properties of the nonlinear resolvent of holomorphic generators

Journal of Mathematical Analysis and Applications

Mark Elin

David Shoikhet

Toshiyuki Sugawa

2020/3/15

Teichmüller’s theorem in higher dimensions and its applications

Computational Methods and Function Theory

Anatoly Golberg

Toshiyuki Sugawa

Matti Vuorinen

2020/11

See List of Professors in Toshiyuki Sugawa University(Tohoku University)

Co-Authors

H-index: 46
Matti Vuorinen

Matti Vuorinen

Turun yliopisto

H-index: 44
Saminathan Ponnusamy

Saminathan Ponnusamy

Indian Institute of Technology Madras

H-index: 24
Stanislawa Kanas

Stanislawa Kanas

Uniwersytet Rzeszowski

H-index: 13
Swadesh Kumar Sahoo

Swadesh Kumar Sahoo

Indian Institute of Technology Indore

H-index: 10
Bappaditya Bhowmik

Bappaditya Bhowmik

Indian Institute of Technology Kharagpur

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