Michael P. Drazin

Michael Peter Drazin ( born June 5, 1929 in London) is a British- American mathematician who deals with noncommutative algebra.

Drazin studied at the University of Cambridge with a Bachelor 's degree in 1950 and the master's degree and doctorate at Robert Alexander Rankin ( and David Rees ) 1953 ( Contributions to Abstract Algebra ). As a post - graduate student, he was until 1955 the Admiralty Research Laboratory in Teddington. After that, he was a Fellow of Trinity College, Cambridge, and in 1957/58 Visiting Professor at Northwestern University, and from 1958 to 1962 at the Research Institute for Advanced Study in Baltimore. In 1962 he became associate professor in 1991 and professor at Purdue University. In 1999 he retired.

It deals with non-commutative rings, matrix theory, theory of semigroups ( semigroups with involution ) and combinatorial problems. A generalized inverse matrix ( Drazin inverse ) is named after him.

He has the American citizenship.