Robert Sorgenfrey

Robert Sorgenfrey
Born(1915-08-14)August 14, 1915
DiedJanuary 7, 1996(1996-01-07) (aged 80)
NationalityAmerican
Alma materUniversity of Texas at Austin
Scientific career
Fieldsgeneral topology
InstitutionsUniversity of California, Los Angeles
Thesis Concerning Triodic Continua  (1941)
Doctoral advisorR.L. Moore

Robert Henry Sorgenfrey (August 14, 1915 – January 7, 1996) was an American mathematician and Professor Emeritus of Mathematics at the University of California, Los Angeles. The Sorgenfrey line and the Sorgenfrey plane are named after him; the Sorgenfrey line was the first example of a normal topological space whose product with itself is not normal.