Rchr
J-GLOBAL ID:200901012172556767   Update date: Dec. 24, 2019

SAKAN Ken-ichi

サカン ケンイチ | SAKAN Ken-ichi
Affiliation and department:
Research field  (1): Basic analysis
Research keywords  (1): Basic Analysis
Research theme for competitive and other funds  (2):
  • Theory of Holomorphic Quadratic Differentials and Extremal Quasiconformal Mappings
  • Various Quasiconformal Extensions of a Quasisymmetric Automorphism of the Unit Circle
Papers (29):
  • Partyka Dariusz, Sakan Ken-ichi, Zhu Jian-Feng. QUASICONFORMAL HARMONIC MAPPINGS WITH THE CONVEX HOLOMORPHIC PART. ANNALES ACADEMIAE SCIENTIARUM FENNICAE-MATHEMATICA. 2018. 43. 1. 401-418
  • Partyka Dariusz, Sakan Ken-ichi. Heinz type Inequalities for Poisson Integrals. COMPUTATIONAL METHODS AND FUNCTION THEORY. 2014. 14. 2-3. 219-236
  • Partyka Dariusz, Sakan Ken-ichi. QUASICONFORMAL AND LIPSCHITZ HARMONIC MAPPINGS OF THE UNIT DISK ONTO BOUNDED CONVEX DOMAINS. ANNALES ACADEMIAE SCIENTIARUM FENNICAE-MATHEMATICA. 2014. 39. 2. 811-830
  • Gutlyanskii Vladimir, Sakan Ken-ichi, Sugawa Toshiyuki. On $¥mu$-conformal homeomorphisms and boundary correspondence. COMPLEX VARIABLES AND ELLIPTIC EQUATIONS. 2013. 58. 7. 947-962
  • Dariusz Partyka, Ken-ichi Sakan. On a result of Clunie and Sheil-Small. Ann. Univ. Mariae Curie-Sklodowska Section A. 2012. 66. 2. 81-92
more...
MISC (7):
  • Necessary and sufficient conditions for extremality in certain classes of quasiconformal mappings. Journal of Mathematics of Kyoto University. 1986. 26. 1. 31-37
  • On extremal guasiconformal mappings with varying dilatation bounds. Osaka Journal of Mathematics. 1986. 23. 4. 751-764
  • A conformally invariant dilatation of quasisymmetry, Proceedings of XII-th Conference on Analytic Functions. Ann.Univ.Mariae Curie-Sk(]E83AC[)odowska. 1999. 53. 167-181
  • A pseudo-metric on the space of generalized quasisymmetric automorphisms of a Jordan curve. Kluwer Academic Publishers. 2000. 895-902
  • The Douady-Earle extension of quasihomographies, in Generalizations of Complex Analysis and Their Applications in Physics. Banach Center Publications. 1996. 37. 35-44
more...
Lectures and oral presentations  (26):
  • Quasiconformal and Lipschitz harmonic mappings of the unit disk onto bounded convex domains (joint research with D.Partyka)
    (大阪市立大学複素解析セミナー 2013)
  • Quasiconformaliy of the Poisson integral (joint research with D.Partyka)
    (Workshop on harmonic and quasiconformal mappings of Riemann surfaces, Yamaguchi University, Japan 2013)
  • Heinz type inequalities for Poisson integrals (joint research with D.Partyka)
    (Workshop "Prospects of Theory of Riemann surfaces", Yamaguchi University, Japan 2013)
  • Heinz type inequalities for Poisson integrals (joint research with D.Partyka)
    (等角写像・値分布論研究集会、法政大学 市ヶ谷キャンパス 2014)
  • Heinz type inequalities for Poisson integrals (joint research with D.Partyka)
    (XVII-th Conference on Analytic Functions and Related Topics, Chelm, Poland 2014)
more...
Education (2):
  • - 1973 Tohoku University Faculty of Science
  • - 1975 Tohoku University Graduate School, Division of Natural Science
Professional career (1):
  • Doctor of Science
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