Paul Cohn

Paul Moritz Cohn FRS

Early life Cohn was the only child of Jewish parents, James (or Jakob) Cohn, owner of an import business, and Julia (née Cohen ), a schoolteacher.

Both of his parents were born in Hamburg, as were three of his grandparents. His ancestors came from various parts of Germany. His father fought in the German army in World War I; he was wounded several times and awarded the Iron Cross.

When he was born, his parents were living with his mother's mother in Isestraße. After her death in October 1925, the family moved to a rented flat in a new building in Lattenkamp, in the Winterhude quarter. He attended a kindergarten then, in April 1930, moved to Alsterdorfer Straße School. After a while, he had a new teacher, a National Socialist, who picked on him and punished him without cause. Thus in 1931, he moved to the Meerweinstraße School where his mother taught. and the Senior Berwick Prize of the London Mathematical Society in 1974. together with the two other experts at Bedford on ring theory, Bill Stephenson and Warren Dicks. He became Astor Professor of Mathematics there in 1986. He continued to be a visiting professor, for example to the University of Alberta in 1986 and to Bar Ilan University in 1987. He retired in 1989, but remained active as professor emeritus and honorary research fellow until his death. 1958: Linear Equations 1961: Solid Geometry 1965: Universal Algebra, second edition 1981 1971: Free Rings and Their Relations second edition 1985 1974: Algebra I, second edition 1982 1977: Algebra II, second edition 1989 1977: Skew Field Constructions 1990: Algebra III 1991: Algebraic Numbers and Algebraic Functions 1994: Elements of Linear Algebra 2000: Introduction to Ring Theory 2000: Classic Algebra 2002: Basic Algebra 2003: Further Algebra and Applications 2004: Oxford Dictionary of National Biography (contributor) 2006: Free Ideal Rings and Localization in General Rings