Education
Bol earned his Doctor of Philosophy in 1928 at Leiden University under Willem van der Woude.
mathematician university professor
Bol earned his Doctor of Philosophy in 1928 at Leiden University under Willem van der Woude.
He is known for introducing Bol loops in 1937, and Bol’s conjecture on sextactic points. In the 1930s, he worked at the University of Hamburg on the geometry of webs under Wilhelm Blaschke and later projective differential geometry. In 1931 he earned a habilitation.
In 1942–1945 during World World War II, Bol fought on the Dutch side, and was taken prisoner.
On the authority of Blaschke, he was released. After the war, Bol became professor at the Albert-Ludwigs-University of Freiburg, until retirement there in 1971.
In 1933 Bol signed the Loyalty Oath of German Professors to Adolf Hitler and the National Socialist State.