Paul Cohn

Paul Moritz Cohn ( born January 8, 1924 in Hamburg, † April 20, 2006 in London) was a British mathematician who worked on algebra.

Life and work

Cohn was born to Jewish parents in Hamburg, his father was James Cohn export merchant, his mother Julia Cohn teacher. Both parents came in the Holocaust to ( they were deported to Riga in 1941 ), Cohn himself was sent as a teenager in 1939 on a Kindertransport to the UK. Cohn studied at Cambridge University, where he 1948 a bachelor's degree and in 1951 made ​​his PhD at Philip Hall. He then spent a year at the University of Nancy and ten years Lecturer at Manchester University. 1961/62 he was a visiting professor at Yale University and in 1962 at the University of California, Berkeley and then became Reader at Queen Mary College. In 1964 he was a visiting professor at the University of Chicago and 1964 at the State University of New York at Stony Brook. In the same year he became a professor at Bedford College, London University and chairman of the mathematics faculty. Following the closure due to budget cuts in 1984, he went to the University College London, where he Astor Professor of Mathematics in 1986. He became Professor Emeritus in 1989. He was often at universities in Canada, Israel, France, India, the USA and in Germany ( Bielefeld) visiting professor.

Cohn was considered a leading algebraists, with works specifically for non-commutative ring theory. From him some textbooks come to algebra.

In 1972 he was awarded the Lester R. Ford Award from the Mathematical Association of America ( for Rings of fractions, American Mathematical Monthly, Vol 78, 1971, S.596 -615 ) and 1974 the Senior Berwick Prize of the London Mathematical Society, whose President in 1982 to 1984 Previously, he was its secretary from 1965 to 1967 and from 1968 to 1975 and 1979 to 1984, whose advice and also gave many years whose monograph series out. In 1980 he became a Fellow of the Royal Society. In 1970 he was invited speaker at the International Congress of Mathematicians in Nice (great Free rings and free products of rings ).

He was married in 1958 and had two daughters.

Writings

  • Lie Groups, Cambridge University Press 1957
  • Linear equations 1958
  • Solid geometry, London, Routledge and Paul, 1961
  • Universal Algebra, Harper and Row 1965 Reidel 1981
  • Free Rings and Their Relations, Academic Press 1971, 1985
  • Algebra, Wiley, Vol.1, 1974, 1982, Vol.2, 1977, 1989, Vol.3, 1990
  • Elements of linear algebra, Chapman and Hall 1999
  • Skew Fields, Theory of General Division Rings, Encyclopedia of Mathematics and its Applications, Springer, Cambridge University Press, Vol 57, 1995
  • Algebraic Numbers and Algebraic Functions, Chapman and Hall 1991
  • Lectures on algebraic numbers and algebraic functions, Queens University Press 1969
  • Introduction to Ring Theory, Springer 2000
  • Classic Algebra, Wiley 2000
  • Basic Algebra - Groups, Rings and Fields, Springer, 2002
  • Free Ideal Rings and Localization in General Rings, Cambridge University Press 2006
  • Skew Field Constructions, Cambridge University Press 1973, 1977
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