Jun-iti Nagata was a Japanese mathematician specializing in topology, born in 1925 and died on 6 November 2007. In 1956 he earned his PhD from Osaka University under the direction of Kiiti Morita. He wrote two standard graduate texts in topology, Modern Dimension Theory and Modern General Topology. His name is attached to the Nagata-Smirnov metrization theorem, proved independently by Nagata in 1950 and by Smirnov in 1951, and to the Assouad-Nagata dimension of a metric space, which he introduced in a 1958 article.
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Source Jun-iti Nagata (Wikipedia)
Proofs Credited
Source Nagata-Smirnov metrization theorem, Wikipedia
In the Other Atlases
- Also in Geography Atlas: Japan, nationality there.
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1. Jun-iti Nagata (Wikipedia)
Lead paragraph
his PhD from Osaka University under the direction of Kiiti Morit
Lead paragraph [nationality-culture]
was a Japanese mathematician
In Branch: Topology, Lead paragraph [in-branch]
specializing in topology
View the SourceNagata-Smirnov metrization theorem, Wikipedia
Proofs Credited: Nagata-Smirnov Metrization Theorem, Lead paragraphQuote, Proofs Credited: Nagata-Smirnov Metrization Theorem, Lead paragraph
In topology, the Nagata-Smirnov metrization theorem characterizes when a topological space is metrizable. The theorem states that a topological
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