Background
Schoenflies was born in Landsberg an der Warthe (modern Gorzów, Poland).
mathematician university professor
Schoenflies was born in Landsberg an der Warthe (modern Gorzów, Poland).
He studied under Kummer and Weierstrass, and was influenced by Felix Klein. He studied at the University of Berlin from 1870–1875.
The Schoenflies problem is to prove that an (n − 1)-sphere in Euclidean n-space bounds a topological ball, however embedded. This question is much more subtle than initially appears. He obtained a doctorate in 1877, and in 1878 he was a teacher at a school in Berlin.
In 1880, he went to Colmar to teach.
Schoenflies was a frequent contributor to Klein"s encyclopedia: In 1898 he wrote on set theory, in 1902 on kinematics, and on projective geometry in 1910. He was a great-uncle of Walter Benjamin.
German Academy of Sciences Leopoldina. Bavarian Academy of Sciences and Humanities.