Geometric function theory and Smale's mean value conjecture

Ege Fujikawa, Toshiyuki Sugawa

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We improve an estimate of the constant in Smale's mean value conjecture, by using the Bieberbach theorem for coefficients of univalent functions and an estimate of the hyperbolic density of a certain simply connected domain.

Original languageEnglish
Pages (from-to)97-100
Number of pages4
JournalProceedings of the Japan Academy Series A: Mathematical Sciences
Issue number7
Publication statusPublished - 2006


  • Critical point
  • Hyperbolic density
  • Polynomial
  • Univalent function


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