Jun-iti Nagata

Dr
Jun-iti Nagata
長田潤一
Jun-iti Nagata in 1977
Born1925 (1925)
DiedNovember 6, 2007(2007-11-06) (aged 81–82)
NationalityJapanese
OccupationMathematician
Known forNagata–Smirnov metrization theorem
TitleProfessor emeritus
Academic background
EducationPhD
Alma materOsaka University
Doctoral advisorKiiti Morita
Academic work
DisciplineTopology mathematics
InstitutionsOsaka Kyoiku University, Osaka Electro-Communication University
Notable worksModern Dimension Theory, Modern General Topology

Jun-iti Nagata (長田 潤一, Nagata Jun'ichi; 1925 - 6 November 2007) was a Japanese mathematician specializing in topology.

In 1956, Jun-iti Nagata earned his PhD from Osaka University under the direction of Kiiti Morita. He was the author of two standard graduate texts in topology: Modern Dimension Theory and Modern General Topology. His name is attached to the Nagata–Smirnov metrization theorem, which was proved independently by Nagata in 1950 and by Smirnov in 1951, as well as the Assouad–Nagata dimension of a metric space, which he introduced in a 1958 article.

Nagata became a professor emeritus at both Osaka Kyoiku University, where he taught for 10 years, and Osaka Electro-Communication University, where he taught for 5 years.