Helmut Karzel

from Wikipedia, the free encyclopedia

Helmut Jürgen Karzel (born January 15, 1928 in Schöneck , West Prussia ) is a German mathematician who deals with geometry .

From 1947 Karzel studied mathematics and physics at the Albert-Ludwigs-Universität Freiburg and from 1950 at the University of Bonn , where he received his doctorate in 1951 under Emanuel Sperner with the dissertation Relationships between ordering functions, norms and dichotomies . In 1955 he became an assistant at the University of Hamburg , where he followed Sperner, and after his habilitation in 1956, he was a private lecturer. After a period in 1961/62 as an associate professor at the University of Pittsburgh , he became an adjunct professor in Hamburg in 1962 and scientific advisor and professor in 1965. In 1967/68 he was visiting professor at the University of Karlsruhe . In 1968 he became a full professor at the Technical University of Hanover and in 1972 at the Technical University of Munich .

1966 to 1971 he was the year administrator of the Mathematical Society in Hamburg . In 1978 he became an honorary member.

He was visiting professor at the University of Toronto (1970, 1974), at the University of Bologna (1976), at the Universities of Brescia and Rome , at Texas A&M University (1983, 1988), at the University of Arizona (1986/87 ) and at the Teeside Polytechnic in Middlesbrough .

From 1971 Karzel was co-editor of the Journal of Geometry , 1973–1975 of the annual reports of the DMV , the results of mathematics and from 1976 the communications of the Mathematical Society Hamburg.

He was co-editor of the collected works of his teacher Sperner.

Fonts

Web links

Individual evidence

  1. ^ Mathematics Genealogy Project