Robert Sorgenfrey

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.[4] 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.

Robert Sorgenfrey
Born(1915-08-14)August 14, 1915[1]
DiedJanuary 7, 1996(1996-01-07) (aged 80)[2]
NationalityAmerican
Alma materUniversity of Texas at Austin[3]
Scientific career
Fieldsgeneral topology
InstitutionsUniversity of California, Los Angeles
ThesisConcerning Triodic Continua (1941)
Doctoral advisorR.L. Moore

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