Kurt Strebel

from Wikipedia, the free encyclopedia

Kurt Strebel (born April 20, 1921 in Wohlen ; † October 26, 2013 in Zurich ) was a Swiss mathematician who dealt with function theory .

Strebel received his doctorate in 1953 under Rolf Nevanlinna at the University of Zurich ( on the circular normalization problem of conformal mapping ). 1953 to 1955 he was at the Institute for Advanced Study and at Stanford University . He became professor in Friborg in 1955 and succeeded Nevanlinna at the University of Zurich in 1963 when Nevanlinna returned to Finland.

Together with the Nevanlinna student and professor Hans Künzi, he founded the Nevanlínna Colloquium in Zurich (later also in other places) in order to maintain contacts with the former professor in Zurich, Rolf Nevanlinna.

In 1977 he became a member of the Finnish Academy of Sciences. He was invited speaker at the 1974 International Congress of Mathematicians in Vancouver ( On quadratic differentials and extremal quasiconformal mappings ).

The Strebel differentials in the Teichmüller theory are named after him .

Fonts

  • Lectures on Riemann surfaces , Vandenhoeck and Ruprecht, 1980.
  • Quadratic Differentials. Results of mathematics and its border areas, Springer Verlag, 1984-
  • On the question of the uniqueness of extremal quasi-conformal images of the unit circle. Comm. Math. Helv. 36, 1961/62, 306-323, part 1, Comm. Math. Helv. 39, 1964, 77-89.
  • with Edgar Reich Extremal quasiconformal mappings with given boundary values. in Contributions to Analysis. A collection of papers dedicated to Lipman Bers . Academic Press, 1974, 375-391.
  • About quadratic differentials with closed trajectories. Festival volume for the 70th birthday of Rolf Nevanlinna, Springer Verlag, 1966,
  • On the maximal dilation of quasiconformal mappings. Proc. AMS, 6, 1955, 903-909.

Web links

Individual evidence

  1. ↑ Kurt Strebel in the Mathematics Genealogy Project (English)Template: MathGenealogyProject / Maintenance / id used
  2. ↑ Nevanlinna Colloquia ( Memento of the original from October 5, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.math.helsinki.fi
  3. ↑ Strebel Rolf Nevanlinna in Zurich , in mathch / 100 , European Mathematical Society 2010, 471-485
personal data
SURNAME Strebel, Kurt
BRIEF DESCRIPTION Swiss mathematician
DATE OF BIRTH April 20, 1921
PLACE OF BIRTH Well
DATE OF DEATH October 26, 2013
Place of death Zurich