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9 1938 . 4 , .

- , 1948 . , 1951 .

, , , , , -, , 6 , .

1989 ̳ ' . . .

  • PM Cohn Skew field constructions, 1977
  • PM Cohn Algebra, I-III, 1974-1990
  • PM Cohn Solid geometry, 1961
  • . , - .: , 1969, 351 ( Universal Algebra, 1965 )
  • PM Cohn Lie Groups, 1957
  • . ³ ', - .: , 1975, 422 ( Free Rings and Their Relations, 1971 )

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