William S. Massey

William Schumacher Massey
Born(1920-08-20)August 20, 1920
Granville, Illinois, United States
DiedJune 17, 2017(2017-06-17) (aged 96)
Hamden, Connecticut, U.S.
Alma materUniversity of Chicago
Princeton University
Known forMassey product
Blakers–Massey theorem
Exact couple
SpouseEthel H. Massey
Children3
Scientific career
FieldsTopology
InstitutionsBrown University
Yale University
ThesisClassification of mappings of an (n + 1)-dimensional space into an n-sphere (1948)
Doctoral advisor
Norman Steenrod
Military career
AllegianceUnited States
Branch
United States Navy
Service years
1942–1945

William Schumacher Massey (August 23, 1920 – June 17, 2017) was an American mathematician, known for his work in algebraic topology. The Massey product is named for him. He worked also on the formulation of spectral sequences by means of exact couples, and wrote several textbooks, including A Basic Course in Algebraic Topology (ISBN 0-387-97430-X).