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Discrete geometry on many colored point sets

Research Project

Project/Area Number 16K05248
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Foundations of mathematics/Applied mathematics
Research InstitutionIbaraki University

Principal Investigator

Kano Mikio  茨城大学, 理工学研究科(工学野), 名誉教授 (20099823)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords離散幾何 / 平面上の多色点集合 / 幾何的グラフ / 赤点と青点集合 / グラフ理論 / 多色点集合 / 虹多角形 / 2色点集合 / 星グラフ / 被覆 / 平衡分割 / ハムサンドイッチ定理 / ハンバーグ定理 / 平面上の離散幾何 / 赤点と青点 / 3色点集合 / グラフの全域木 / グラフの因子 / 離散数学
Outline of Final Research Achievements

For given three colored point sets in the plane, we considered some geometric problems on them, which are arising from the discrete geometry on two colored point sets in the plane. Moreover, some problems can be extended to spaces. For example, we proved that there exists a balanced line for three colored point sets in the plane, and also showed the existence of balanced hyperplane in the d-dimensional space for d+1 colored point sets. We also obtained some other results on discrete geometry and graph theory related to the research project, and these results were published in 12 papers.

Academic Significance and Societal Importance of the Research Achievements

平面上に与えられた赤点と青点に関する幾何的な定理は100年くらい前からいくつか知られていたが、本格的に研究が始まったのはこの30年くらいである。そしていくつかの研究成果が得られ、類似の性質が3色点集合でも成り立つことがいくつか知られてきた。本研究では平面上に与えられた3色点集合上の各種幾何的な性質・定理を得ることを主目標とし、いくつかの結果を得た。これらはさらに高次元への拡張や、4色以上の点集合の問題へと進展していくものと思われる。また、これと関連するグラフ理論の問題などにも影響をあたえると思われる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (43 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (11 results) Journal Article (12 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 12 results,  Open Access: 4 results,  Acknowledgement Compliant: 5 results) Presentation (16 results) (of which Int'l Joint Research: 7 results,  Invited: 4 results) Remarks (4 results)

  • [Int'l Joint Research] Alcala University/Universitat Autonoma de Barcelona/Universitat Politecnica de Catalunya(スペイン)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Charles University(チェコ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] California State University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Xi'an Jiaotong University/Yangtze University/Shandong University(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Budapest University Tech. Eco.(ハンガリー)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] カールトン大学(カナダ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] メキシコ国立自治大学(メキシコ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] 山東大学/西安交通大学(中国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] アラカラ大学/カタルーニャ工科大学(スペイン)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Technology Graz(オーストリア)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] 西安交通大学(中国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Connected Odd Factors of Graphs2019

    • Author(s)
      Nastaran Haghparast, Mikio Kano, Shunichi Maezawa, Kenta Ozeki
    • Journal Title

      The Australasian Journal of Combinatorics

      Volume: 73 Pages: 200-206

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] K_{1,3}-covering red and blue points in the plane2019

    • Author(s)
      B. M. Abrego, S. Fernandez-Merchant, M. Kano, D. Orden, P. Perez-Lantero, C. Seara, J. Tejel,
    • Journal Title

      Discrete Mathematics & Theoretical Computer Science

      Volume: 21

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The hamburger theorem2018

    • Author(s)
      Mikio Kano and Jan Kyncl
    • Journal Title

      Computational Geometry: Theory and Applications

      Volume: 68 Pages: 167-173

    • DOI

      10.1016/j.comgeo.2017.06.012

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Weight-equitable subdivision of red and blue points in the plane2018

    • Author(s)
      Jude Buot and Mikio Kano
    • Journal Title

      International Journal of Computational Geometry & Applications

      Volume: 28 Issue: 01 Pages: 39-56

    • DOI

      10.1142/s0218195918500024

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Decomposition of a graph into two disjoint odd subgraphs2018

    • Author(s)
      Mikio Kano, Gyula Katona and Kitti Varga
    • Journal Title

      Graphs and Combinatorics

      Volume: 34 Issue: 6 Pages: 1581-1588

    • DOI

      10.1007/s00373-018-1970-0

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Balancing Colored Points on a Line by Exchanging Intervals2017

    • Author(s)
      Atsushi Kaneko, Mikio Kano and Mamoru Watanabe
    • Journal Title

      Journal of Information Processing

      Volume: 25 Issue: 0 Pages: 551-553

    • DOI

      10.2197/ipsjjip.25.551

    • NAID

      130005990884

    • ISSN
      1882-6652
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Balancing colored points on a line by exchanging intervals2017

    • Author(s)
      Atsushi Kaneko, Mikio Kano and Mamoru Watanabe
    • Journal Title

      IPSJ Journal

      Volume: 印刷中

    • NAID

      130005990884

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Generalizations of Marriage Theorem for Degree Factors2016

    • Author(s)
      Radoslaw Cymer and Mikio Kano
    • Journal Title

      Graphs and Combinatorics

      Volume: 32 Issue: 6 Pages: 2315-2322

    • DOI

      10.1007/s00373-016-1699-6

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 0-Sum and 1-Sum Flows in Regular Graphs2016

    • Author(s)
      S. Akbari, M. Kano, S. Zare
    • Journal Title

      The Electronic Journal of Combinatorics

      Volume: 23

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Spanning trees with bounded degrees and leaves2016

    • Author(s)
      M. Kano and Zheng Yan
    • Journal Title

      Discrete Mathemtics

      Volume: 339 Issue: 5 Pages: 1583-1586

    • DOI

      10.1016/j.disc.2015.12.023

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] m-dominating k-trees of graphs2016

    • Author(s)
      M. Kano, K. Ozeki, M. Tsugaki and G. Yan
    • Journal Title

      Discrete Mathematics

      Volume: 339 Issue: 2 Pages: 729-736

    • DOI

      10.1016/j.disc.2015.10.013

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] (1,f)-factors of graphs with odd property2016

    • Author(s)
      Y. Egawa, M. Kano and Z. Yan
    • Journal Title

      Graphs and Combinatorics

      Volume: 32 Pages: 103-110

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 平面上の多色点集合の虹多角形2019

    • Author(s)
      加納 幹雄
    • Organizer
      第15回組合せ論若手研究集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Some current results and problems on factors of graphs2018

    • Author(s)
      Mikio Kano
    • Organizer
      International Conference on Recent Trends in Graphs and Combinatorics 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Some current results on factors of graphs and related problems2018

    • Author(s)
      Mikio Kano
    • Organizer
      The 15th GraphMaster International Conference on Networks and Algorithms
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 辺着色されたグラフの虹全域木と彩色全域木2018

    • Author(s)
      加納 幹雄
    • Organizer
      離散数学とその応用研究集会2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Tutte type conditions using isolated vertices for a graph to have factors2018

    • Author(s)
      Mikio Kano
    • Organizer
      30th workshop on topological graph theory
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] グラフの2 つの奇次数部分グラフへの分解2018

    • Author(s)
      加納 幹雄
    • Organizer
      第14 回組合せ論若手研究集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 1-タフグラフの因子による特徴付け2017

    • Author(s)
      加納幹雄
    • Organizer
      第13 回組合せ論若手研究集
    • Place of Presentation
      慶應義塾大学矢上キャンパス
    • Year and Date
      2017-03-01
    • Related Report
      2016 Research-status Report
  • [Presentation] 平面上の3 色点集合のある分割2017

    • Author(s)
      加納 幹雄
    • Organizer
      第29 回位相幾何学的グラフ理論研究集会
    • Related Report
      2017 Research-status Report
  • [Presentation] Balanced subdivisions of three colored point sets in the plane2017

    • Author(s)
      Mikio Kano
    • Organizer
      Japan Conference on Discrete and Computational Geometry, Grpahs and Games 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Characterization of 1-tough graphs using factors2017

    • Author(s)
      Mikio Kano
    • Organizer
      the 10th Japanese-Hungarian Symposium on Discrete Mathematics and Its Applications
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] ω(G-S)≦f(S)を満たすグラフの因子2017

    • Author(s)
      加納 幹雄
    • Organizer
      Japanese Conference on Combinatorics and its Applications (JCCA-2017)・離散数学とその応用研究集会2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 強いTutte タイプの条件を満たすグラフの因子2017

    • Author(s)
      加納 幹雄
    • Organizer
      5th Pacic Workshop on Discrete Mathematics
    • Related Report
      2017 Research-status Report
  • [Presentation] Factors of bi-regular bipartite graphs2016

    • Author(s)
      Mikio Kano
    • Organizer
      THE 25TH WORKSHOP ’3IN1’
    • Place of Presentation
      DOSLONCE, POLAND
    • Year and Date
      2016-11-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Spanning trees with bounded diameter2016

    • Author(s)
      加納幹雄
    • Organizer
      第28 回位相幾何学的グラフ理論研究集会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2016-11-11
    • Related Report
      2016 Research-status Report
  • [Presentation] Spanning trees of graphs and bipartite graphs2016

    • Author(s)
      Mikio Kano
    • Organizer
      The Third Sino-Japan Symposium on Graph Theory, Combinatorics and their Applications
    • Place of Presentation
      西安 西北工業大学
    • Year and Date
      2016-11-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Factors of bi-regular bipartite graphs2016

    • Author(s)
      加納幹雄
    • Organizer
      離散数学とその応用研究集会2016
    • Place of Presentation
      宮城県 高城コミュニティセンター
    • Year and Date
      2016-08-20
    • Related Report
      2016 Research-status Report
  • [Remarks] Kano Lab.

    • URL

      http://gorogoro.cis.ibaraki.ac.jp/

    • Related Report
      2018 Annual Research Report
  • [Remarks] KANO Lab.

    • URL

      http://gorogoro.cis.ibaraki.ac.jp

    • Related Report
      2017 Research-status Report
  • [Remarks] Oswin Aichholzer

    • URL

      http://www.ist.tugraz.at/aichholzer/

    • Related Report
      2016 Research-status Report
  • [Remarks] Hongliang LU

    • URL

      https://www.researchgate.net/profile/Hongliang_Lu

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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