Ott-Heinrich Keller

Ott-Heinrich Keller (1906 to 1990) was a German mathematician who worked on geometry, algebraic geometry and topology. Born in Frankfurt, he studied at the universities of Frankfurt, Vienna, Berlin and Göttingen and received his doctorate in 1929 under Max Dehn, with a thesis on filling space with cubes without gaps. He was an assistant at Frankfurt and then at the Technical University of Charlottenburg in Berlin, where he submitted his habilitation on Cremona transformations in 1933. After the Second World War he became a professor at Dresden in 1947 and at the Martin Luther University of Halle-Wittenberg in 1951, where he led the Mathematical Institute. His book Geometrie der Zahlen appeared in 1954. He is credited with the 1939 formulation of the Jacobian conjecture for polynomials with integer coefficients, which this atlas treats under its own entry.