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Hiroshi Okamura

Japanese mathematician

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 1, 2026
Entity authorityQ5771010 ↗
Source-derived summary

Hiroshi Okamura (岡村 博, Okamura Hiroshi; November 10, 1905 – September 3, 1948) was a Japanese mathematician who made contributions to analysis and the theory of differential equations. He was a professor at Kyoto University.

He discovered the necessary and sufficient conditions on initial value problems of ordinary differential equations for the solution to be unique. He also refined the second mean value theorem of integration.

Works

Hiroshi Okamura (1941), "Sur l'unicité des solutions d'un système d'équations différentielles ordinaires", Mem. Coll. Sci., Kyoto Imperial Univ. (in French), 23: 225–231

Hiroshi Okamura (1942), "Condition nécessaire et suffisante remplie par les équations différentielles ordinaires sans points de Peano", Mem. Coll. Sci., Kyoto Imperial Univ.

Editorial summary

The public source identifies “Hiroshi Okamura” as japanese mathematician. This brief keeps that definition visible, then builds a research path around Hiroshi, Okamura and Japanese.

Editorial reviewStrongest as a route into the people, institutions and dated events that shaped the subject’s public record. The current lead gives the account dated anchors—1905, 1948, 1941, 1942—that can be checked directly. The linked authority record independently contributes the date 1905-09. Its value is orientation rather than verdict, with Hiroshi, Okamura and Japanese providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Hiroshi Okamura”, the useful work is to connect “japanese mathematician” to the records capable of establishing context and consequence.

Evidence profile

Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Sep 1, 2026. The linked authority identifier is Q5771010. VIAF identifies the subject as 252565558. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1905, 1948, 1941 and 1942.

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Source & attribution

This entry incorporates text from “Hiroshi Okamura” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.