. . "1968Z"^^ . "Guido Hoheisel (1894\u20131968) was a German mathematician, a professor of mathematics at the University of Cologne. He did his PhD in 1920 from the University of Berlin under the supervision of Erhard Schmidt.Hoheisel is known for a result on gaps between prime numbers."@en . "1894Z"^^ . "German mathematician" . "Hoheisel, Guido"@en .