Käte Fenchel

Käte Fenchel née Käte Sperling (21 December 1905 – 19 December 1983) was a German-born Jewish mathematician, best known for her work on non-abelian groups.

Life Käte was born in Berlin to a newspaper reporter and a bookkeeper, Rusza Sperling (1878–1948). She was encouraged to write a thesis, but she never obtained the doctorate.

While in Denmark, she helped facilitate the escape of other German Jews facing persecution. However, in 1940, the Nazi forces invaded that country so the young family, with Käte's mother, left with thousands of other refugees for Sweden. After the Allied liberation of Denmark, the Fenchels returned to Copenhagen, where Käte worked as a part-time lecturer job at Aarhus University in Denmark, from 1965-1970.

Fenchel died on 19 December 1983.

Selected works Fenchel authored several academic papers, and published the last of them at the age of 73. Fenchel, Käte. "On a theorem of Frobenius." Mathematica Scandinavica 42.2 (1978): 243-250. Fenchel, Käte. "A note about groups of odd order." Mathematica Scandinavica 10 (1962): 182-188. Fenchel, Käte. "Relationships between the structure of a finite group and a special representation." Monthly notebooks for mathematics 66.5 (1962): 397-409. Fenchel, Käte. "Moderne Algebra, Erster Teil, 2. Auflage.(Die Grundlehren der mathematischen Wissenschaften in Einzeldarstellungen, Band XXXIII)." (1938): 48-50. Fenchel, Käte. "L'algèbre abstraite. (Actualités scientifiques et industrielles, 362 (Abstract algebra)." (1938): 55-55. Fenchel, Käte. "Gruppen von linearen Transformationen.(Ergebnisse der Mathematik und ihrer Grenzgebiete, Bd. 4, Heft 2)." (Groups of Linear Transformations. (Results of Mathematics and its Borderlands, Vol. 4, Issue 2)). (1935): 116-117.