| Project/Area Number |
16540002
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Algebra
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| Research Institution | Iwate University |
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Principal Investigator |
ONISHI Yoshihiro Iwate University, Faculty of Humanities and Social Sciences, Assistant Professor, 人文社会科学部, 助教授 (60250643)
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| Co-Investigator(Kenkyū-buntansha) |
ODAI Yoshitaka Iwate University, Faculty of Humanities and Social Sciences, Assistant Professor, 人文社会科学部, 助教授 (10204215)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2005: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2004: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | Abelian function / Algebraic function / Algebraic curve / hyperelliptic curve / division polynomial / Frobenius-Stickelberger / Frobenins-Stickelberger / Bernoulli数 / Frobenius-Stickelbergerの公式 / Bernoulli-Hurwitz数 / 普遍Bernoulli数 |
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| Research Abstract |
Thanks to the Grant-in-Aid for Scientific Research (C), academic years 2000-2002, with theme "Research on product formula for special values of Abelian functions", the head investigator (Y.O) made two progresses :
(1)Nicely generalized Bernoulli-Hurwitz numbers to algebraic functions of cyclotomic type, and
(2)Gave determinantal expressions of addition formulae for Abelian functions associated to higher genus algebraic curves,
Hence, we aimed to investigate these results deeply as follows :
(1)should be improved by connecting the result to application on L-series as in the case of Bernoulli, and Hurwitz numbers;
(2)should be generalized to non-hyperelliptic curves.
The results :
The problem (1)is so difficult. We only preparated a manuscript to submit a academic journal. We, however, made a big progress on (2), and published a lot of papers as included in this report.
(1)is needed to investigate further ;
(2)is only proved by a dedious way, and should be proved more directly.
We will continue to research on these problem.
Finally, we hope our results be good hints for researchers who are interesting on theory of Abelian functions.
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