Background
His father Hellmuth Kneser and grandfather Adolf Kneser were also mathematicians.
His father Hellmuth Kneser and grandfather Adolf Kneser were also mathematicians.
He obtained his Doctor of Philosophy in 1950 from Humboldt University of Berlin with the dissertation: Über den Rand von Parallelkörpern.
His advisor was Erhard Schmidt. His name has been given to Kneser graphs which he studied in 1955. He also gave a simplified proof of the Fundamental theorem of algebra.
His main publications were on quadratic forms and algebraic groups.
German Academy of Sciences Leopoldina.