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Research on global properties of algebraic singularities

Research Project

Project/Area Number 26287011
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Geometry
Research InstitutionHyogo University of Teacher Education

Principal Investigator

Koike Satoshi  兵庫教育大学, その他部局等, 名誉教授 (60161832)

Co-Investigator(Kenkyū-buntansha) 福井 敏純  埼玉大学, 理工学研究科, 教授 (90218892)
塩田 昌弘  名古屋大学, 多元数理科学研究科, 名誉教授 (00027385)
Research Collaborator ISHIKAWA GOO  北海道大学
SAEKI OSAMU  九州大学
BEKKA KARIM  Universite de Rennes 1
KUO TZEE-CHAR  University of Sydney
MILMAN PIERRE  University of Toronto
LOI TA LE  University of Da Lat
PARUSINSKI ADAM  Universite de Nice
PAUNESCU LAURENTIU  University of Sydney
Project Period (FY) 2014-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywordsナッシュ曲面 / ブローナッシュ自明性 / 半代数的同値 / 特異点解消 / 同程度特異性 / 接方向的横断性 / ナッシュ構造安定 / 相対ジェットの十分性 / 代数的特異点 / ナッシュ多様体 / 半代数的自明性 / ナッシュ構造安定性 / 実代数幾何学 / 特異点論 / 同程度特異性問題 / 点列選択性性質 / リプシッツ不変量 / 位相モジュライ / ブロー半代数的自明性 / 微分位相幾何学 / 半代数的写像 / 層化理論
Outline of Final Research Achievements

Nash sets and Nash mappings are very important research objects in Real Algebraic Geometry. In this research we studied global properties of those singularities, and have obtained the following results.
We proved a finiteness theorem for Blow-Nash triviality of a family of main parts of Nash surfaces in a Nash manifold which is extendable to a Blow-semialgebraic triviality of a family of Nash surfaces as embedded Nash sets. For a family of Nash mappings from a Nash surface to a Nash manifold, we proved that the number of semialgebraic types of Nash mappings is finite if the Nash surface admits only isolated singularities, and constructed a family of polynomial mappings from an algebraic surface with non-isolated singularities to the 4-dimensional Euclidean space in which topological moduli appear.

Academic Significance and Societal Importance of the Research Achievements

まず、最初の研究成果の学術的意義を述べる。以前の研究で、2次元ナッシュ集合族のブロー半代数的自明性に関する有限性定理を示していたが、これをナッシュ曲面の主部上ではブローナッシュ自明となるブロー半代数的自明性に関する有限性定理に向上し、3次元の場合のブローナッシュモジュライの出現が、2次元の場合には起こり得ないことを明らかにした。
次に、二つ目の成果の学術的意義を述べる。特異点論の一般的常識では、定義域が2次元のナッシュ写像族に現れる半代数的タイプは有限で、3次元以上では位相モジュライが出現する。しかし、定義域が2次元の場合であっても、それが特異である場合には異なる結果になることを示した。

Report

(6 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (58 results)

All 2019 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (7 results) Journal Article (23 results) (of which Int'l Joint Research: 13 results,  Peer Reviewed: 22 results,  Open Access: 5 results,  Acknowledgement Compliant: 1 results) Presentation (19 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Book (4 results) Remarks (2 results) Funded Workshop (3 results)

  • [Int'l Joint Research] The University of Sydney(オーストラリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Universite de Rennes 1/Universite de Nice/Universite de Savoie(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Sydney(Australia)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Universite de Rennes I/Universite de Nice(France)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of Sydney(Australia)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Universite de Rennes I/Universite de Nice(France)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] University of Sydney(Australia)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Global directional properties of singular spaces2019

    • Author(s)
      Koike Satoshi、Paunescu Laurentiu
    • Journal Title

      Revue Roumaine de Mathematiques Pures et Appliquees

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Arc spaces, motivic measure and Lipschitz geometry of real algebraic sets2019

    • Author(s)
      Campesato Jean-Baptiste、Fukui Toshizumi、Kurdyka Krzysztof、Parusinski Adam
    • Journal Title

      Mathematische Annalen

      Volume: - Issue: 1-2 Pages: 211-251

    • DOI

      10.1007/s00208-019-01805-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Finiteness of semialgebraic types of Nash mappings defined on a Nash surface2018

    • Author(s)
      Koike Satoshi、Shiota Masahiro
    • Journal Title

      Mathematische Zeitschrift

      Volume: - Issue: 3-4 Pages: 819-837

    • DOI

      10.1007/s00209-018-2104-3

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Applications of the sequence selection property to bi-Lipschitz geometry2018

    • Author(s)
      Koike Satoshi、Paunescu Laurentiu
    • Journal Title

      European Journal of Mathematics

      Volume: - Issue: 4 Pages: 1202-1211

    • DOI

      10.1007/s40879-018-0291-4

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Real Milnor fibres and Puiseux series2017

    • Author(s)
      F. Goulwen and M. Shiota
    • Journal Title

      Annales Scientifiques de l'Ecole Normale Superieure

      Volume: 50 Pages: 1205-1240

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Invariants for bi-Lipschitz equivalence of ideals2017

    • Author(s)
      C. Bivia-Ausina and T. Fukui
    • Journal Title

      The Quarterly Journal of Mathematics

      Volume: 68 Issue: 3 Pages: 791-815

    • DOI

      10.1093/qmath/hax002

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Contact of a regular surface in Euclidean 3-space with cylinders and cubic binary differential equations2017

    • Author(s)
      T. Fukui, M. Hasegawa and K. Nakagawa
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 69 Pages: 819-847

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local differential geometry of singular curves with finite multiplicities2017

    • Author(s)
      T. Fukui
    • Journal Title

      Saitama Mathematical Journal

      Volume: 31 Pages: 79-88

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Real Milnor fibers and Puiseux series2017

    • Author(s)
      Goulwen Fichou and Masahiro Shiota
    • Journal Title

      Annales Scientifiques de l'Ecole Normale Superieure

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Contact of a regular surface in Euclidean 3-space with cylinders and binary differential equations2017

    • Author(s)
      Toshizumi Fukui, Masaru Hasegawa and Kouichi Nakagawa
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 69 Pages: 819-847

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Artin approximation compatible with a change of variables2016

    • Author(s)
      Goulwen Fichou, Ronan Quarez and Masahiro Shiota
    • Journal Title

      Canadian Mathematical Society

      Volume: 59 Issue: 4 Pages: 760-768

    • DOI

      10.4153/cmb-2016-034-1

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Curvature for curves in semi-Euclidean spaces2016

    • Author(s)
      Toshizumi Fukui and Donghe Pei
    • Journal Title

      Journal of Geometry

      Volume: 107 Issue: 3 Pages: 663-683

    • DOI

      10.1007/s00022-015-0309-8

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Extensions of Koenderink's formula2016

    • Author(s)
      Toshizumi Fukui, Masaru Hasegawa and Kentaro Saji
    • Journal Title

      Journal of Gekova Geometry Topology

      Volume: 10 Pages: 42-59

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Motivic invariants of real polynomial functions and their Newton polyhedrons2016

    • Author(s)
      Goulwen Fichou and Toshizumi Fukui
    • Journal Title

      Mathematical Proceedings of the Cambridge Philosophical Society

      Volume: 160 Pages: 141-166

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mixed Lojasiewicz exponents and log canonical thresholds of ideals2016

    • Author(s)
      Carles Bivia-Ausina and Toshizumi Fukui
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 220 Issue: 1 Pages: 223-245

    • DOI

      10.1016/j.jpaa.2015.06.007

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A'Campo curvature bumps and the Dirac phenomenon near a singular point2015

    • Author(s)
      Satoshi Koike, Tzee-Char Kuo and Laurentiu Paunescu
    • Journal Title

      Proceedings of the London Mathematical Society

      Volume: 111 Issue: 3 Pages: 717-748

    • DOI

      10.1112/plms/pdv036

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] ナッシュ曲面上定義されたナッシュ写像族の半代数的タイプの有限性について2015

    • Author(s)
      小池敏司
    • Journal Title

      RIMS Kokyuroku

      Volume: 1948 Pages: 1-5

    • Related Report
      2015 Annual Research Report
    • Open Access
  • [Journal Article] Continuous mappings between spaces of arcs2015

    • Author(s)
      Goulwen Fichou and Masahiro Shiota
    • Journal Title

      Bulletin de la Societe Mathematique de France

      Volume: 143 Pages: 315-337

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Measuring definable sets in o-minimal fields2015

    • Author(s)
      J.Marikova
    • Journal Title

      Israel J., Math.

      Volume: 209 Issue: 2 Pages: 687-714

    • DOI

      10.1007/s11856-015-1234-0

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the geometry of sets satisfying the sequence selection property2015

    • Author(s)
      Satoshi Koike, Laurentiu Paunescu
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 67 Issue: 2 Pages: 721-751

    • DOI

      10.2969/jmsj/06720721

    • NAID

      130005069893

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] (SSP) geometry with directional homeomorphisms2015

    • Author(s)
      Satoshi Koike, Laurentiu Paunescu
    • Journal Title

      Journal of Singularities

      Volume: 13 Pages: 169-178

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Continuous mappings between spaces of arcs2015

    • Author(s)
      Goulwen Fichou, Masahiro Shiota
    • Journal Title

      Bulletin de la Societe Mathematiqque de France

      Volume: 印刷中

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measuring definable sets in o-minimal fields2015

    • Author(s)
      Jana Marikova, Masahiro Shiota
    • Journal Title

      Israel Journal of Mathematics

      Volume: 印刷中

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] 尖点と燕尾の局所微分幾何2019

    • Author(s)
      福井敏純
    • Organizer
      第26回 沼津改め 静岡研究会 - 幾何、数理物理、そして量子論 -
    • Related Report
      2018 Annual Research Report
  • [Presentation] Finiteness theorem for blow-Nash triviality of a family of Nash surfaces2018

    • Author(s)
      小池敏司
    • Organizer
      微分幾何学・微分式系・特異点論の応用
    • Related Report
      2018 Annual Research Report
  • [Presentation] Finiteness problem for semialgebraic types of Nash mappings and Shiota conjecture2018

    • Author(s)
      Satoshi Koike
    • Organizer
      Real Algebraic Geometry and Singularity Theory Symposium
    • Related Report
      2018 Annual Research Report
  • [Presentation] Revisit Euler buckling problem2018

    • Author(s)
      Toshizumi Fukui
    • Organizer
      Real Algebraic Geometry and Singularity Theory Symposium
    • Related Report
      2018 Annual Research Report
  • [Presentation] On bifurcation of Euler beam problem2018

    • Author(s)
      Toshizumi Fukui
    • Organizer
      The 6th Franco-Japanese-Vietnamese Symposium on Singularities
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Directional properties of singular spaces: toward the study of their global properties (I) and (II)2018

    • Author(s)
      小池敏司
    • Organizer
      第7回神戸特異点研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Variations of fundamental theorem of curves2018

    • Author(s)
      福井敏純
    • Organizer
      東京学芸大学小研究集会「幾何学と特異点 2018」
    • Related Report
      2017 Annual Research Report
  • [Presentation] On change of variables formula2018

    • Author(s)
      福井敏純
    • Organizer
      第7回神戸特異点研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Characterisations of V-sufficiency and C^0-sufficiency of relative jets2017

    • Author(s)
      Satoshi Koike
    • Organizer
      Japanese-Australian Workshop on Real and Complex Singularities, Sydney 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Arc spaces, motivic measure and Lipschitz property on real algebraic varieties2017

    • Author(s)
      Toshizumi Fukui
    • Organizer
      Japanese-Australian Workshop on Real and Complex Singularities, Sydney 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Local differential geometry of cuspidal edge and swallowtail2017

    • Author(s)
      福井敏純
    • Organizer
      RIMS共同研究(公開型)「可微分写像の特異点論の局所的研究と大域的研究」
    • Related Report
      2017 Annual Research Report
  • [Presentation] Lipschitz property of Nash maps2016

    • Author(s)
      福井敏純
    • Organizer
      The 4th Franco-Japanese-Vietnamese Singularities
    • Place of Presentation
      Chambery, France
    • Year and Date
      2016-11-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Godel と多様体の分類 (I), (II)2016

    • Author(s)
      塩田昌弘
    • Organizer
      研究集会「特異点の大域的研究」
    • Place of Presentation
      兵庫教育大学 神戸ハーバーランドキャンパス 兵教ホール
    • Year and Date
      2016-06-22
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Neron desingularization の応用 (I), (II)2015

    • Author(s)
      塩田昌弘
    • Organizer
      第6回神戸特異点研究会
    • Place of Presentation
      兵庫教育大学神戸ハーバーランドキャンパス
    • Year and Date
      2015-09-01
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Lipschitz property for arc-analytic map2015

    • Author(s)
      Toshizumi Fukui
    • Organizer
      International Symposium "Real Singularities and Applications"
    • Place of Presentation
      CIRM, Luminy, France
    • Year and Date
      2015-02-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] Finiteness on semialgebraic types of Nash mappings defined on a Nash surface2015

    • Author(s)
      Satoshi Koike
    • Organizer
      International Symposium "Real Singularities and Applications"
    • Place of Presentation
      CIRM, Luminy, France
    • Year and Date
      2015-02-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] ヒルベルトの立場から見た多様体2014

    • Author(s)
      塩田昌弘
    • Organizer
      数理解析研究所研究集会
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2014-12-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Finiteness on semialgebraic types of Nash mappings defined on a Nash surface2014

    • Author(s)
      Satoshi Koike
    • Organizer
      International Workshop on Singularities, Geometry, Topology and Related Topics
    • Place of Presentation
      Northeast Normal Univeristy, Changchun, China
    • Year and Date
      2014-09-02
    • Related Report
      2014 Annual Research Report
  • [Presentation] Contact of a surface with cylinders and cubic binary differential equations2014

    • Author(s)
      Toshizumi Fukui
    • Organizer
      13th International Workshop on Real and Complex Singularities
    • Place of Presentation
      Universidade de Sao Paulo, Brazil
    • Year and Date
      2014-08-04
    • Related Report
      2014 Annual Research Report
  • [Book] Saitama Mathematical Journal, Vol. 31, 2017 (Proceedings of the sixth Japanese-Austrailan workshop on Real and Complex Singularities)2017

    • Author(s)
      Toshizumi Fukui, Satoshi Koike and Laurentiu Paunescu
    • Total Pages
      163
    • Publisher
      Area of Mathematics, Graduate School of Science and Engineering, Saitama University
    • Related Report
      2017 Annual Research Report
  • [Book] Saitama Mathematical Journal (Proceedings of the 6th JARCS Kagoshima 2015)2017

    • Author(s)
      Toshizumi Fukui, Satoshi Koike and Laurentiu Paunescu
    • Publisher
      Area of Mathematics, Graduate School of Science and Engineering, Saitama University
    • Related Report
      2016 Annual Research Report
  • [Book] Romanian Journal of Pure and Applied Mathematics, Tome LX, No. 4, 2015 (Proceedings of the 5th JARCS Sydney 2013)2015

    • Author(s)
      Satoshi Koike, Stefan Papadima and Laurentiu Paunescu (Guest Editors)
    • Total Pages
      175
    • Publisher
      Editura Academiei Romane
    • Related Report
      2015 Annual Research Report
  • [Book] 曲線と曲面の基礎・基本2015

    • Author(s)
      福井敏純
    • Publisher
      牧野書店
    • Related Report
      2014 Annual Research Report
  • [Remarks] 小池敏司

    • URL

      http://www.sci.hyogo-u.ac.jp/koike/

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report 2015 Annual Research Report
  • [Remarks] 小池敏司

    • URL

      http://www.sci..hyogo-u.ac.jp/koike/

    • Related Report
      2016 Annual Research Report
  • [Funded Workshop] Real Algebraic Geometry2017

    • Place of Presentation
      名古屋大学多元数理科学研究科
    • Year and Date
      2017-03-13
    • Related Report
      2016 Annual Research Report
  • [Funded Workshop] Japanese-Australian Workshop on Real and Complex Singularities, Sydney 20172017

    • Related Report
      2017 Annual Research Report
  • [Funded Workshop] Sixth Japanese-Australian Workshop on Real and Complex Singularities2015

    • Place of Presentation
      鹿児島大学理学部
    • Year and Date
      2015-11-23
    • Related Report
      2015 Annual Research Report

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Published: 2014-04-04   Modified: 2020-03-30  

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