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Norman J. Pullman    

Norman J. Pullman (1931 - 1999)

Norm Pullman was born in New York in 1931. After a brief career as a commercial artist, he obtained his M.A. in mathematics at Harvard and his Ph.D. at the University of Syracuse (1962) under the supervision of Peter Frank. He taught at McGill University from 1962 to 1965, and held a postdoctoral fellowship at the University of Alberta in 1965-66. He then moved to Queen's, where he taught until his retirement in 1994.

Throughout his career, he made significant contributions to the study of powers of nonnegative matrices, as well as to the theory of tournaments, graph decompositions, and linear preserver problems. He published over 80 papers in the areas of matrix theory and graph theory, as well as the book "Matrix Theory and its Applications" (Dekker, 1976). While at Queen's, he supervised 15 graduate students, including 4 doctoral students. His personal and professional contributions were honoured in the festschrift "Graphs, Matrices, and Designs" (Dekker, 1993, R. Rees, Ed.), which marked the occasion of his 60th birthday.

Professor Pullman passed away on 28 May 1999 after a struggle with ALS. An insightful researcher, a supportive and respected collaborator, a valued colleague and friend, Norm will be fondly remembered for his generosity, his sound counsel, and above all for his warm and lively sense of humour.

.... David Gregory and Steve Kirkland


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