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2008 Fiscal Year Final Research Report

New development of geometric function theory focused on conformal invariants

Research Project

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Project/Area Number 17340039
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Basic analysis
Research InstitutionTohoku University (2008)
Hiroshima University (2005-2007)

Principal Investigator

SUGAWA Toshiyuki  Tohoku University, 大学院・情報科学研究科, 教授 (30235858)

Co-Investigator(Kenkyū-buntansha) MIZUTA Yoshihiro  広島大学, 大学院・理学研究科, 教授 (00093815)
SAKAN Ken-ichi  大阪市立大学, 大学院・理学研究科, 准教授 (70110856)
Co-Investigator(Renkei-kenkyūsha) SHIBA Masakazu  広島大学, 大学院・工学研究科, 名誉教授 (70025469)
YOSHINO Masafumi  広島大学, 大学院・理学研究科, 教授 (00145658)
TANIGUCHI Masahiko  奈良女子大学, 理学部, 教授 (50108974)
SHIGA Hiroshige  東京工業大学, 大学院・理工学研究科, 教授 (10154189)
MATSUZAKI Katsuhiko  岡山大学, 大学院・自然科学研究科, 教授 (80222298)
NAKAHISNI Toshihiro  島根大学, 総合理工学部, 教授 (00172354)
SHIMOMURA Tetsu  広島大学, 大学院・教育学研究科, 准教授 (50294476)
Project Period (FY) 2005 – 2008
Keywords等角不変量 / 双曲計量 / ポテンシャル論 / リーマン面
Research Abstract

双曲計量, 環状幅, 調和測度などを幾何学的函数論やポテンシャル論の立場から研究し, 多くの定理や応用を得た.また, 等角計量が与えられたリーマン面間の正則写像の不変高階微分や不変シュワルツ微分についても研究を行い, その基本的な性質を明らかにした.

  • Research Products

    (65 results)

All 2009 2008 2007 2006 2005 Other

All Journal Article (60 results) Presentation (5 results)

  • [Journal Article] The Patterson-Sullivan measure and proper conjugation for Kleinian groups of divergence type2009

    • Author(s)
      K. Matsuzaki, and Y. Yabuki
    • Journal Title

      Ergodic Theory DynamDynam. Systems 29

      Pages: 657-665

  • [Journal Article] Uniformly locally univalent functions and Hardy spaces2009

    • Author(s)
      Yong Chan Kim, and T. Sugawa
    • Journal Title

      J.Math.Anal.Appl 353

      Pages: 61-67

  • [Journal Article] A coefficient inequality for Bloch functions with applications to uniformly locally univalent functions2009

    • Author(s)
      T. Terada, and T. Sugawa
    • Journal Title

      Monatsh. Math. 156

      Pages: 167-173

  • [Journal Article] Hypergeometric functions and hyperbolic metric2009

    • Author(s)
      G. D. Anderson, T. Sugawa, M. K. Vamanamurthy, and M. Vuorinen
    • Journal Title

      Comput. Methods Funct. Theory 9

      Pages: 269-284

  • [Journal Article] Dynamics of structurally finite entire functions with two singular values2008

    • Author(s)
      S. Morosawa, and M. Taniguchi
    • Journal Title

      Comput. Methods Funct. Theory 9

      Pages: 185-198

  • [Journal Article] Dynamics on Teichmuller spaces and self-covering of Riemann surfaces2008

    • Author(s)
      E. Fujikawa, K. Matsuzaki, and M. Taniguchi
    • Journal Title

      Math. Z. 260

      Pages: 865-888

  • [Journal Article] A compactification of the moduli space of polynomials2008

    • Author(s)
      M. Fujimura, and M. Taniguchi
    • Journal Title

      Proc. Amer. Math. Soc. 136

      Pages: 3601-3609

  • [Journal Article] Norm estimates and univalence criteria for meromorphic functions2008

    • Author(s)
      S. Ponnusamy, and T. Sugawa
    • Journal Title

      J. Korean Math. Soc. 45

      Pages: 1661-1676

  • [Journal Article] The limiting shape of one-dimensional Teichmuller spaces2008

    • Author(s)
      T. Sugawa
    • Journal Title

      Proc. Amer. Math. Soc. 136

      Pages: 2849-2858

  • [Journal Article] A note on a theorem of Chuaqui and Gevirtz2008

    • Author(s)
      Yong Chan Kim, and T. Sugawa
    • Journal Title

      Ann. Acad. Sci. Fenn. Math. 33

      Pages: 273-279

  • [Journal Article] Sobolev embeddings for Riesz potentials of functions in Morrey spaces of variable exponent2008

    • Author(s)
      Y. Mizuta, and T. Shimomura
    • Journal Title

      J. Math. Soc. Japan 60

      Pages: 583-602

  • [Journal Article] Integrability of maximal functions for generalized Lebesgue spaces with variable exponent2008

    • Author(s)
      Y. Mizuta, T. Ohno, and T. Shimomura
    • Journal Title

      Math. Nachr. 281

      Pages: 386-395

  • [Journal Article] Invariance of the Nayatani metrics for Kleinian manifolds2008

    • Author(s)
      K. Matsuzaki, and Y. Yabuki
    • Journal Title

      Geom. Dedicata 135

      Pages: 147-155

  • [Journal Article] Quasiconformal mapping class groups having common fixed points on the asymptotic Teichmuller spaces2007

    • Author(s)
      K. Matsuzaki
    • Journal Title

      J.Anal.Math. 102

      Pages: 1-28

  • [Journal Article] A quasiconformal mapping class group acting trivially on the asymptotic Teichmuller space2007

    • Author(s)
      K. Matsuzaki
    • Journal Title

      Proc. Amer. Math. Soc. 135

      Pages: 2573-2579

  • [Journal Article] Non-stationary and discontinuous quasiconformal mapping class groups2007

    • Author(s)
      E. Fujikawa, and K. Matsuzaki
    • Journal Title

      Osaka J. Math. 44

      Pages: 173-185

  • [Journal Article] The interior of discrete projective structures in the Bers fiber2007

    • Author(s)
      K. Matsuzaki
    • Journal Title

      Ann. Acad. Sci. Fenn. Math. 32

      Pages: 3-12

  • [Journal Article] Strong starlikeness for a class of convex functions2007

    • Author(s)
      S. Kanas, and T. Sugawa
    • Journal Title

      J.Math.Anal.Appl. 336

      Pages: 1005-1017

  • [Journal Article] A general approach to the Fekete-Szegoe problem2007

    • Author(s)
      J.-H. Choi, Y.-C. Kim, and T. Sugawa
    • Journal Title

      J.Math.Soc.Japan 59

      Pages: 707-727

  • [Journal Article] Invariant differential operators associated with a conformal metric2007

    • Author(s)
      Seong-A Kim, and T. Sugawa
    • Journal Title

      Michigan Math. J. 55

      Pages: 459-479

  • [Journal Article] The Alexander transform of a spirallike function2007

    • Author(s)
      Yong Chan Kim, and T. Sugawa
    • Journal Title

      J.Math.Anal.Appl. 325

      Pages: 608-611

  • [Journal Article] Vanishing exponential integrability for Riesz potentials of functions in Orlicz classes2007

    • Author(s)
      Y. Mizuta, and T. Shimomura
    • Journal Title

      Illinois J.Math. 51

      Pages: 1039-1060

  • [Journal Article] Distortion of the area measure for one-to-one harmonic mappings of the unit disk onto itself2007

    • Author(s)
      D. Partyka, and K. Sakan
    • Journal Title

      Sci. Bull. Chelm Math. Comput. Sci. 2

      Pages: 39-48

  • [Journal Article] On bi-Lipschitz type inequalities for quasiconformal harmonic mappings2007

    • Author(s)
      D. Partyka, and K.Sakan
    • Journal Title

      Ann. Acad. Sci. Fenn. Math. 32

      Pages: 579-594

  • [Journal Article] Univalence of a complex linear combination of two extremal parallel slit mappings2007

    • Author(s)
      M. Shiba
    • Journal Title

      Analysis(Munich) 27

      Pages: 301-310

  • [Journal Article] Equivalence problem for annuli and Bell representations in the plane2007

    • Author(s)
      Moonja Jeong, Jong-Won Oh, and M. Taniguchi
    • Journal Title

      J.Math.Anal.Appl. 325

      Pages: 1295-1305

  • [Journal Article] A trace identity for parabolic elements of SL(2, C)2007

    • Author(s)
      T. Nakanishi
    • Journal Title

      Kodai Math. J. 30

      Pages: 1-18

  • [Journal Article] Geometric function theory and Smale's mean value conjecture2006

    • Author(s)
      E. Fujikawa, and T. Sugawa
    • Journal Title

      Proc. Japan Acad. 82 Ser. A, NO.7

      Pages: 97-100

  • [Journal Article] A conformal invariant for non-vanishing analytic functions and its applications2006

    • Author(s)
      Yong Chan Kim, and T. Sugawa
    • Journal Title

      Michigan Math. J. 54

      Pages: 393-410

  • [Journal Article] On conformal representations of the interior of an ellipse2006

    • Author(s)
      S. Kanas, and T. Sugawa
    • Journal Title

      Ann. Acad. Sci. Fenn. Math. 31

      Pages: 329-348

  • [Journal Article] Drawing Bers embeddings of the Teichmuller space of once-punctured tori2006

    • Author(s)
      Y. Komori, T. Sugawa, M. Wada, and Y. Yamashita
    • Journal Title

      Exper. Math 15

      Pages: 51-60

  • [Journal Article] Norm estimates of the pre-Schwarzian derivatives for certain classes of univalent functions2006

    • Author(s)
      Yong Chan Kim, and T. Sugawa
    • Journal Title

      Proc. Edinburgh Math. Soc. 49

      Pages: 131-143

  • [Journal Article] Sobolev embeddings for Riesz potential space of variable exponent2006

    • Author(s)
      T. Futamura, Y. Mizuta, and T. Shimomura
    • Journal Title

      Math. Nachr. 279

      Pages: 1463-1473

  • [Journal Article] Sobolev embeddings for variable exponent Riesz potentials on metric spaces2006

    • Author(s)
      T. Futamura, Y. Mizuta, and T. Shimomura
    • Journal Title

      Ann. Acad. Sci. Fenn. Math. 31

      Pages: 495-522

  • [Journal Article] Existence of tangential limits for alpha-harmonic functions on half spaces2006

    • Author(s)
      Y. Mizuta
    • Journal Title

      Potential Anal 25

      Pages: 29-36

  • [Journal Article] Spherical means and Riesz decomposition for superbiharmonic functions2006

    • Author(s)
      K. Kitaura, and Y. Mizuta
    • Journal Title

      J. Math. Soc. Japan 58

      Pages: 521-533

  • [Journal Article] Three variants of Schwarz's lemma for harmonic mappings2006

    • Author(s)
      D. Partyka, and K.Sakan
    • Journal Title

      Bull. Soc. Sci. Lett. lodz Ser. Rech. Deform 51

      Pages: 23-36

  • [Journal Article] The Teichmuller space of the ideal boundary2006

    • Author(s)
      M. Taniguchi
    • Journal Title

      Hiroshima Math. J. 36

      Pages: 39-48

  • [Journal Article] Recurrent and periodic points for isometries of L^infinity spaces2006

    • Author(s)
      E. Fujikawa, and K. Matsuzaki
    • Journal Title

      Indiana Univ. Math. J. 55

      Pages: 975-997

  • [Journal Article] On an asymptotically sharp variant of Heinz's inequality2005

    • Author(s)
      D. Partyka, and K.Sakan
    • Journal Title

      Ann. Acad. Sci. Fenn. Math. 30

      Pages: 167-182

  • [Journal Article] Characterizations of hyperbolically convex regions2005

    • Author(s)
      T. Sugawa, Seong-A Kim
    • Journal Title

      J. Math. Anal. Appl. 309

      Pages: 37-51

  • [Journal Article] Some inequaities for the Poincare metric of plane domains2005

    • Author(s)
      T. Sugawa, and M. Vuorinen
    • Journal Title

      Math. Z 250

      Pages: 885-906

  • [Journal Article] A self-duality of strong starlikeness2005

    • Author(s)
      T. Sugawa
    • Journal Title

      Kodai Math. J. 28

      Pages: 382-389

  • [Journal Article] Norm estimates for the Alexander transforms of convex functions of order alpha2005

    • Author(s)
      J.-H. Choi, Y.-C. Kim, S. Ponnusamy, and T. Sugawa
    • Journal Title

      J.Math.Anal.Appl. 303

      Pages: 661-668

  • [Journal Article] On the degenerate Beltrami equation2005

    • Author(s)
      V. Gutlyanskii, O. Martio, T. Sugawa, and M. Vuorinen
    • Journal Title

      Trans. Amer. Math. Soc. 357

      Pages: 875-900

  • [Journal Article] Continuity of weakly monotone Sobolev functions2005

    • Author(s)
      T. Futamura, and Y.Mizuta
    • Journal Title

      Adv.Math.Sci.Appl. 15

      Pages: 571-585

  • [Journal Article] Sobolev's inequality for Riesz potentials with variable exponent satisfying a log-Hoelder condition at infinity2005

    • Author(s)
      Y. Mizuta, and T. Shimomura
    • Journal Title

      infinity. J. Math. Anal. Appl. 311

      Pages: 268-288

  • [Journal Article] Circularizable domains on Riemann surfaces2005

    • Author(s)
      M. Masumoto, and M. Shiba
    • Journal Title

      Kodai Math. J. 28

      Pages: 280-291

  • [Journal Article] Covering structure and dynamical structure of a structurally finite entire function2005

    • Author(s)
      M. Taniguchi
    • Journal Title

      Kodai Math. J. 28

      Pages: 430-438

  • [Journal Article] On complex analytic properties of limit sets and Julia sets2005

    • Author(s)
      H. Shiga
    • Journal Title

      Kodai Math. J. 28

      Pages: 368-381

  • [Journal Article] On the hyperbolic length and quasiconformal mappings2005

    • Author(s)
      H. Shiga
    • Journal Title

      Complex Var. Theory Appl. 50

      Pages: 123-130

  • [Journal Article] Isoperimetric constants for conservative Fuchsian groups2005

    • Author(s)
      K. Matsuzaki
    • Journal Title

      Kodai Math. J. 28

      Pages: 292-300

  • [Journal Article] A countable Teichmuller modular group2005

    • Author(s)
      K. Matsuzaki
    • Journal Title

      Trans. Amer. Math. Soc. 357

      Pages: 3119-3131

  • [Journal Article] A note on Bazilevic functions

    • Author(s)
      Yong Chan Kim, T. and Sugawa
    • Journal Title

      to appear in Taiwanese J. Math.

  • [Journal Article] Completely monotone sequences and universally prestarlike functions

    • Author(s)
      St. Ruscheweyh, L. Salinas, and T. Sugawa
    • Journal Title

      to appear in Israel J. Math.

  • [Journal Article] Sobolev's inequality for Riesz potentials of functions in Morrey spaces of integral form

    • Author(s)
      Y. Mizuta, and T. Shimomura
    • Journal Title

      to appear in Math. Nachr.

  • [Journal Article] Continuity properties for Riesz potentials of functions in Morrey spaces of variable exponent

    • Author(s)
      Y. Mizuta, and T. Shimomura
    • Journal Title

      to appear in Math. Inequal. Appl.

  • [Journal Article] On some geometric properties of Teichmuller space, to appear in RIMS Kokyuroku Bessatsu

    • Author(s)
      L. Liu, H. Shiga, Z. Sun, H. Wei
    • Journal Title

      Infinite dimensional Teichmuller space and moduli space

  • [Journal Article] Modulus of continuity, a Hardy-Littlewood theorem and its application, to appear in RIMS Kokyuroku Bessatsu

    • Author(s)
      H. Shiga
    • Journal Title

      Infinite dimensional Teichmuller space and moduli space

  • [Journal Article] On quasiconformal invariance of convergence and divergence types for Fuchsian groups

    • Author(s)
      K. Matsuzaki
    • Journal Title

      to appear in Illinois J. Math.

  • [Presentation] 平面領域のポテンシャル論的性質とHardy空間2008

    • Author(s)
      須川敏幸
    • Organizer
      2008年度ポテンシャル論研究集会
    • Place of Presentation
      秋田市
    • Year and Date
      2008-11-02
  • [Presentation] Hyperbolic metric and hypergeometric functions2008

    • Author(s)
      Toshiyuki Sugawa
    • Organizer
      The 16th ICFIDCAA
    • Place of Presentation
      Dongguk University, Korea
    • Year and Date
      2008-07-31
  • [Presentation] Uniformly perfect sets and Hardy spaces2007

    • Author(s)
      Toshiyuki Sugawa
    • Organizer
      Finland-Japan Joint Seminar on Analysis
    • Place of Presentation
      University of Helsinki, Finland
    • Year and Date
      2007-08-28
  • [Presentation] Hausdorff moment problem and polylogarithm2006

    • Author(s)
      Toshiyuki Sugawa
    • Organizer
      14th ICFIDCAA
    • Place of Presentation
      Hue University, Vietnam
    • Year and Date
      2006-08-04
  • [Presentation] Circular widths of plane domains(joint work with Yong Chan Kim)2005

    • Author(s)
      Toshiyuki Sugawa,
    • Organizer
      Computational Methods and Function Theory 2005
    • Place of Presentation
      University of Joensuu, Finland
    • Year and Date
      2005-06-16

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Published: 2010-06-10   Modified: 2016-04-21  

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