On the degenerate Beltrami equation V Gutlyanskiĭ, O Martio, T Sugawa, M Vuorinen Transactions of the American Mathematical Society 357 (3), 875-900, 2005 | 89 | 2005 |

Growth and coefficient estimates for uniformly locally univalent functions on the unit disk YC Kim, T Sugawa The Rocky Mountain journal of mathematics, 179-200, 2002 | 63 | 2002 |

Various domain constants related to uniform perfectness T Sugawa Complex Variables and Elliptic Equations 36 (4), 311-345, 1998 | 58 | 1998 |

A general approach to the Fekete-Szegö problem JH Choi, YC Kim, T Sugawa Journal of the Mathematical Society of Japan 59 (3), 707-727, 2007 | 56 | 2007 |

Some inequalities for the Poincaré metric of plane domains T Sugawa, M Vuorinen Mathematische Zeitschrift 250 (4), 885-906, 2005 | 47 | 2005 |

On conformal representations of the interior of an ellipse S Kanas, T Sugawa ANNALES-ACADEMIAE SCIENTIARUM FENNICAE MATHEMATICA 31 (2), 329, 2006 | 39 | 2006 |

Mapping properties of nonlinear integral operators and pre-Schwarzian derivatives YC Kim, S Ponnusamy, T Sugawa Journal of mathematical analysis and applications 299 (2), 433-447, 2004 | 39 | 2004 |

Coefficient bounds and convolution properties for certain classes of close-to-convex functions YC Kim, JH Choi, T Sugawa Proceedings of the Japan Academy, Series A, Mathematical Sciences 76 (6), 95-98, 2000 | 39 | 2000 |

Norm estimates of the pre-Schwarzian derivatives for certain classes of univalent functions YC Kim, T Sugawa Proceedings of the Edinburgh Mathematical Society 49 (1), 131-143, 2006 | 35 | 2006 |

Uniformly perfect sets: analytic and geometric aspects T Sugawa Sugaku Expositions 16 (2), 225, 2003 | 35 | 2003 |

Completely monotone sequences and universally prestarlike functions S Ruscheweyh, L Salinas, T Sugawa Israel Journal of Mathematics 171 (1), 285-304, 2009 | 33 | 2009 |

Some counterexamples in dynamics of rational semigroups R Stankewitz, T Sugawa, H Sumi arXiv preprint arXiv:0708.3434, 2007 | 24 | 2007 |

A self-duality of strong starlikeness T Sugawa Kodai Mathematical Journal 28 (2), 382-389, 2005 | 20 | 2005 |

Drawing Bers embeddings of the Teichmüller space of once-punctured tori Y Komori, T Sugawa, M Wada, Y Yamashita Experimental Mathematics 15 (1), 51-60, 2006 | 19 | 2006 |

Bers embedding of the Teichmüller space of a once-punctured torus Y Komori, T Sugawa Conformal Geometry and Dynamics of the American Mathematical Society 8 (5 …, 2004 | 18 | 2004 |

On the norm of pre-Schwarzian derivatives of strongly starlike functions T SUGAWA 数理解析研究所講究録 1012, 178-185, 1997 | 18 | 1997 |

The Bers projection and the -lemma T Sugawa Journal of Mathematics of Kyoto University 32 (4), 701-713, 1992 | 18 | 1992 |

The universal Teichmüller space and related topics T Sugawa Quasiconformal mappings and their applications, 261-289, 2007 | 17 | 2007 |

Coefficient estimates of analytic endomorphisms of the unit disk fixing a point with applications to concave functions R Ohno, T Sugawa Kyoto Journal of Mathematics 58 (2), 227-241, 2018 | 16 | 2018 |

Norm estimates for the Alexander transforms of convex functions of order alpha JH Choi, YC Kim, S Ponnusamy, T Sugawa Journal of mathematical analysis and applications 303 (2), 661-668, 2005 | 16 | 2005 |