Lars Ahlfors

Lars Ahlfors
Lars Ahlfors
Born(1907-04-18)18 April 1907
Helsinki, Finland
Died11 October 1996(1996-10-11) (aged 89)
Pittsfield, Massachusetts, U.S.
Alma materUniversity of Helsinki
Known forAnalytic capacity
Riemann surfaces
Quasiconformal mappings
Denjoy-Carleman-Ahlfors theorem
Ahlfors finiteness theorem for Kleinian groups
Ahlfors theory
Conformal geometry
Geometric function theory
AwardsFields Medal (1936)
Wihuri Prize (1968)
Wolf Prize (1981)
Leroy P. Steele Prize (1982)
Scientific career
FieldsMathematics
InstitutionsÅbo Akademi
University of Helsinki
ETH Zurich
Harvard University
Doctoral advisor
Ernst Lindelöf
Rolf Nevanlinna
Doctoral students
Paul Garabedian
Dale Husemoller
James A. Jenkins
Albert Marden
Robert Osserman
Henry Pollak
Halsey Royden
George Springer

Lars Valerian Ahlfors (18 April 1907 – 11 October 1996) was a Finnish mathematician and the leading figure in complex analysis during the 20th century. He is remembered for his work on Riemann surfaces, quasiconformal mappings and Teichmüller spaces, and for his textbook on complex analysis. In 1936 Ahlfors was one of the first two recipients of the Fields Medal, along with American mathematician Jesse Douglas, and in 1981 he received the Wolf Prize in Mathematics.