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Robert Sorgenfrey
American mathematician · United States · On the map · Academics · Lived 1915 to 1996 · aged 80
Robert Henry Sorgenfrey was an American mathematician and Professor of Mathematics at the University of California, Los Angeles at UCLA until his retirement in 1979.
Robert Sorgenfrey is read about 3 times a day, in 7 languages.
A typical day, 30 days to 15 June 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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About this person
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.
Country
United States
Category
Academics
Type
Academic
Status
Deceased
Dates
Lived 1915 to 1996 · aged 80
