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- Yasutaka_Ihara abstract "Yasutaka Ihara (伊原 康隆, Ihara Yasutaka; born 1938, Tokyo Prefecture) is a Japanese mathematician, professor emeritus at the Research Institute for Mathematical Sciences, working on number theory who introduced Ihara's lemma and the Ihara zeta function.Ihara received his PhD at the University of Tokyo in 1967 with thesis Hecke polynomials as congruence zeta functions in elliptic modular case. In 1965/66 he was at the Institute for Advanced Study. He was a professor at the University of Tokyo and then at the Research Institute for Mathematical Science (RIMS) of the University of Kyōto. In 2002 he retired from RIMS as professor emeritus and then became a professor at Chūō University.Ihara has done important research on geometric and number theoretic applications of Galois theory. In the 1960s he introduced the eponymous Ihara zeta function. In graph theory the Ihara zeta function has an interpretation, which was conjectured by Jean-Pierre Serre and proved by Toshikazu Sunada in 1985. Sunada also proved that a regular graph is a Ramanujan graph if and only if its Ihara zeta function satisfies an analogue of the Riemann hypothesis.In 1990 Ihara gave a plenary lecture Braids, Galois groups and some arithmetic functions at the ICM in Kyōto. In 1970 he was an invited speaker (with lecture Non abelian class fields over function fields in special cases) at the ICM in Nice.His doctoral students include Kazuya Katō.".
- Yasutaka_Ihara birthDate "1938".
- Yasutaka_Ihara birthYear "1938".
- Yasutaka_Ihara wikiPageExternalLink index.php?title=The_Ihara_Zeta_Function_and_the_Riemann_Zeta_Function.
- Yasutaka_Ihara wikiPageExternalLink index.html.
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- Yasutaka_Ihara wikiPageWikiLink Category:1938_births.
- Yasutaka_Ihara wikiPageWikiLink Category:20th-century_Japanese_mathematicians.
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- Yasutaka_Ihara wikiPageWikiLink Category:Japanese_mathematicians.
- Yasutaka_Ihara wikiPageWikiLink Category:Living_people.
- Yasutaka_Ihara wikiPageWikiLink Category:Number_theorists.
- Yasutaka_Ihara wikiPageWikiLink Category:University_of_Tokyo_alumni.
- Yasutaka_Ihara wikiPageWikiLink Category:University_of_Tokyo_faculty.
- Yasutaka_Ihara wikiPageWikiLink Chuo_University.
- Yasutaka_Ihara wikiPageWikiLink Chūō_University.
- Yasutaka_Ihara wikiPageWikiLink Galois_theory.
- Yasutaka_Ihara wikiPageWikiLink Graph_theory.
- Yasutaka_Ihara wikiPageWikiLink Ihara_zeta_function.
- Yasutaka_Ihara wikiPageWikiLink Iharas_lemma.
- Yasutaka_Ihara wikiPageWikiLink Institute_for_Advanced_Study.
- Yasutaka_Ihara wikiPageWikiLink International_Congress_of_Mathematicians.
- Yasutaka_Ihara wikiPageWikiLink Jean-Pierre_Serre.
- Yasutaka_Ihara wikiPageWikiLink Kazuya_Kato.
- Yasutaka_Ihara wikiPageWikiLink Kenneth_Alan_Ribet.
- Yasutaka_Ihara wikiPageWikiLink Kenneth_Ribet.
- Yasutaka_Ihara wikiPageWikiLink Kyoto.
- Yasutaka_Ihara wikiPageWikiLink Kyoto_University.
- Yasutaka_Ihara wikiPageWikiLink Kyōto.
- Yasutaka_Ihara wikiPageWikiLink Nice.
- Yasutaka_Ihara wikiPageWikiLink Ramanujan_graph.
- Yasutaka_Ihara wikiPageWikiLink Regular_graph.
- Yasutaka_Ihara wikiPageWikiLink Research_Institute_for_Mathematical_Sciences.
- Yasutaka_Ihara wikiPageWikiLink Riemann_hypothesis.
- Yasutaka_Ihara wikiPageWikiLink Tokyo_Prefecture.
- Yasutaka_Ihara wikiPageWikiLink Toshikazu_Sunada.
- Yasutaka_Ihara wikiPageWikiLink University_of_Kyoto.
- Yasutaka_Ihara wikiPageWikiLink University_of_Tokyo.
- Yasutaka_Ihara wikiPageWikiLinkText "Ihara, Yasutaka".
- Yasutaka_Ihara wikiPageWikiLinkText "Yasutaka Ihara".
- Yasutaka_Ihara dateOfBirth "1938".
- Yasutaka_Ihara hasPhotoCollection Yasutaka_Ihara.
- Yasutaka_Ihara name "Ihara, Yasutaka".
- Yasutaka_Ihara shortDescription "Japanese mathematician".
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- Yasutaka_Ihara description "Japanese mathematician".
- Yasutaka_Ihara description "Japanese mathematician".
- Yasutaka_Ihara subject Category:1938_births.
- Yasutaka_Ihara subject Category:20th-century_Japanese_mathematicians.
- Yasutaka_Ihara subject Category:21st-century_Japanese_mathematicians.
- Yasutaka_Ihara subject Category:Japanese_mathematicians.
- Yasutaka_Ihara subject Category:Living_people.
- Yasutaka_Ihara subject Category:Number_theorists.
- Yasutaka_Ihara subject Category:University_of_Tokyo_alumni.
- Yasutaka_Ihara subject Category:University_of_Tokyo_faculty.
- Yasutaka_Ihara hypernym Mathematician.
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- Yasutaka_Ihara comment "Yasutaka Ihara (伊原 康隆, Ihara Yasutaka; born 1938, Tokyo Prefecture) is a Japanese mathematician, professor emeritus at the Research Institute for Mathematical Sciences, working on number theory who introduced Ihara's lemma and the Ihara zeta function.Ihara received his PhD at the University of Tokyo in 1967 with thesis Hecke polynomials as congruence zeta functions in elliptic modular case. In 1965/66 he was at the Institute for Advanced Study.".
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- Yasutaka_Ihara givenName "Yasutaka".
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- Yasutaka_Ihara name "Ihara, Yasutaka".
- Yasutaka_Ihara name "Yasutaka Ihara".
- Yasutaka_Ihara surname "Ihara".