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1998 Fiscal Year Final Research Report Summary

Arithmetic of Z_p-field and geometry of algebraic curves

Research Project

Project/Area Number 09640008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Algebra
Research InstitutionGakushuin University (1998)
The University of Tokyo (1997)

Principal Investigator

NAKAJIMA Shoichi  Gakushuin University, Faculty of Science, Professor, 理学部, 教授 (90172311)

Co-Investigator(Kenkyū-buntansha) KAWAMOTO Fuminori  Gakushuin University, Faculty of Science, Assistant, 理学部, 助手 (50195161)
NAKANO Shin  Gakushuin University, Faculty of Science, Associate Professor, 理学部, 助教授 (40180327)
ICHIMURA Humio  Yokohama City University, Faculty of Science, Associate Professor, 理学部, 助教授 (00203109)
NAITO Hirotada  Kagawa University, Faculty of Education, Associate Professor, 教育学部, 助教授 (00180224)
KURODA Shigenobu  University of Tokyo, Graduate School of Mathematical Sciences, Associate Profess, 大学院・数理科学研究科, 助教授 (70012416)
Project Period (FY) 1997 – 1998
KeywordsIwasawa theory / Algebraic number field
Research Abstract

The aim of this project was investigating Iwasawa theory of algebraic number fields through the notion of Zp-field, and through comparing it with the arithmetic theory of elliptic curves.
The results obtained in the project are concerned with
(1) basic construction of Iwasawa theory
(2) arithmetic of elliptic curves over algebraic number fields, and they are collected in the publication of the results of this project.
In this project the following activities were also proceeded :
(3) activity of "Kummer Research Group"
(4) computation of examples by using computer algebra system.
(3) is a project for reading papers of Kummer on number theory, expecting to find new ideas in classical great works.
(4) is an attempt to find good examples for Iwasawa theory by making use of computers whose ability is extensively advanced recently.
For (3) and (4) no concrete results have been published yet.
However, in future we expect to publish, in some form, the results of activities (3) and (4) that were begun as part of this project.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 中島匠一: "岩沢理論入門" 数理解析研究所講究録. 1026. 28-42 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ichimura: "Class numbers of real quadratic function fields of genus one" Finite Fields and Their Applications. 3. 181-185 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ichimura, H.Sumida: "On the Iwasawa invariants of certain real abeliau fields" Tohoku Math. J.49. 203-215 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H. Ichimura: "A note on Greenberg's conjecture and the abc conjecture" Proc. Amer. Math. Soc.126. 1315-1320 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ichimura: "Local units modulo Gauss sums" J. Number Theory. 68. 36-56 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ichimura: "On the class numbers of the maximal real subfields of cyclotomic function fields" Finite Fields and Their Applications. 4. 167-174 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Nakajima: "Introduction to Iwasawa theory (in Japanese)" RIMS Kokyu-roku. 1026. 28-42 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ichimura: "Class numbers of real quadratic function fields of genus one" Finite Fields and Their Appl.3. 181-185 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ichimura and H.Sumida: "On the Iwasawa invariants of certain real abelian fields" Tohoku Math.J.49. 203-215 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ichimura: "a note on Greenberg's conjecture and the abc conjecture" Proc.Amer.Math.Soc.126. 1315-1320 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ichimura: "Local units modulo Gauss sums" J.Number Theory. 68. 36-56 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Ichimura: "On the class numbers of the maximal real subfields of cycotomic function fields" Finite Fields and Their Appl.4. 167-174 (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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