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Last updated : September 22, 2017

堀田 一敬(Ikkei Hotta)

山口大学 大学院理工学研究科
工学部 工学基礎教育
〒755-8611 宇部市常盤台2-16-1 [地図]
常盤台キャンパス本館2F 230室

ihotta (at)




学士(2004,理学) 東京都立大学
修士(2007,理学) 東京都立大学
博士(2010,情報科学) 東北大学

2010年4月  --  2010年9月 東北大学,研究生
2010年10月  --  2010年12月  The State School of Higher Education in Chełm (Poland) 講師
2011年1月  --  2011年3月 Maria Curie-Skłodowska University (Poland) 招待講師
2011年4月  --  2013年3月 University of Würzburg (Germany) DAAD博士研究員
2013年4月  --  2014年3月 University of Würzburg (Germany) 客員研究員
2013年4月  --  2015年3月 東京工業大学 日本学術振興会 特別研究員(PD)
2015年4月  --  現在 山口大学 大学院理工学研究科 専任講師



  1. Explicit quasiconformal extensions and Löwner chains,
    Proc. Japan Acad. Ser. A Math. Sci. 85 (2009), no. 8, 108--111.
  2. Ruscheweyh's univalence criterion and quasiconformal extensions,
    Kodai Math. J. 33 (2010), no. 3, 446--456.
  3. On strongly starlike and convex functions of order $\alpha$ and type $\beta$ (with Mamoru Nunokawa),
    Mathematica 53(76) (2011), no. 1, 51--56.
    [fulltext, preprint]
  4. Boundedness, univalence and quasiconformal extension of Robertson functions (with Li-Mei Wang),
    Indian J. Pure Appl. Math., 42(4) (2011), 239--248.
    [fulltext, preprint]
  5. Löwner chains with complex leading coefficient,
    Monatsh. Math. 163 (2011), no. 3, 315--325.
  6. Ahlfors's quasiconformal extension condition and $\Phi$-likeness,
    Publ. Math. Debrecen 82 (2013), no. 2, 473--483.
    [fulltext, preprint]
  7. Locally one-to-one harmonic functions with starlike analytic part (with Andrzej Michalski),
    Bull. Soc. Sci. Lett. Łódź Sér. Rech. Déform., vol. 64, no. 2 (2014), 19--27.
    [fulltext, preprint]
  8. Quasiconformal extendibility of integral transforms of Noshiro-Warschawski functions (with Li-Mei Wang),
    Rocky Mountain J. Math. 47 (2017), no. 1, 185–204.
    [fulltext, preprint]
  9. Chordal Loewner chains with quasiconformal extensions (with Pavel Gumenyuk),
    Math. Z. 285 (2017), no. 3-4, 1063–1089.
    [fulltext, preprint]
  10. Tightness results for infinite-slit limits of the chordal Loewner equation (with Andrea Del Monaco and Sebastian Schleißinger)
    Comput. Methods Funct. Theory, to appear.
    [fulltext, preprint]
  11. On a numerical algorithm for the solution of the radial Loewner equation (with Hirokazu Shimauchi)
    Math. Methods Appl. Sci., to appear.

  1. Loewner theory for quasiconformal extensions: old and new
  2. Loewner chains with quasiconformal extensions: an approximation approach
  3. Some remarks on Schur's theorem for bounded analytic functions (with Andrzej Michalski)

  1. Löwner chains and quasiconformal extensions,
    The proceedings of the Twelfth conference on real and complex analysis (2008), 47--54.
  2. Quasiconformal extensions of univalent functions and Becker's theorem,
    RIMS Kokyuroku 1626 (2009), 7--14.
    [fulltext, preprint]
  3. Normalization of Löwner chains and univalence and quasiconformal extension criteria,
    The proceedings of the International Symposium on Geometric Function Theory and Applications 2010, 159--164.
  4. On spirallike functions and Robertson functions,
    RIMS Kokyuroku 1727 (2011), 10--15.
    [fulltext, preprint]
  5. Norm estimate of pre-Schwarzian derivatives of nonlinear integral transform for certain analytic functions,
    The proceedings of the International Symposium on Geometric Function Theory and Applications 2011, 91--95.
  1. Quasiconformal mappings in the plane (Japanese),
    Master's Thesis
  2. Loewner Theory (Japanese)
    A short survey for International Workshop on Conformal Dynamics and Loewner Theory
  3. On a theorem concerning to univalent functions linearly accessible by M. Bienacki
    English Translation of "Sur un théorème concernant les fonctions univalentes linéairement accessibles de M. Bienacki" by A. Bielecki and Z. Lewandowski

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