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Graph realization problem and graph rigidity

Research Project

Project/Area Number 15K15942
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Mathematical informatics
Research InstitutionThe University of Tokyo (2017-2018)
Kyoto University (2015-2016)

Principal Investigator

Tanigawa Shinichi  東京大学, 大学院情報理工学系研究科, 准教授 (30623540)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywordsグラフの実現問題 / グラフ剛性 / 半正定値計画問題 / 大域剛性 / グラフ / 行列補完問題 / マトロイド / 弦グラフ / グラフの剛性 / 剛性マトロイド / 周期グラフ / 多面体 / グラフ実現問題 / 半正定値行列補完問題 / 距離多面体 / odd-K4マイナー / 面的縮小法
Outline of Final Research Achievements

Understanding the facial structure of projections of the elliptopes is a fundamental question in convex optimization. In this study we showed a new connection between projections of the elliptopes and the classical distance polyhedra. Based on this connection, we developed a new combinatorial algorithm for the graph realization problem.
We also obtain a substantial contribution to graph rigidity theory. Among others we affirmatively settled a conjecture by Whiteley concerning the global rigidity of simplicial polytopes.

Academic Significance and Societal Importance of the Research Achievements

グラフを入力とする連続最適化問題は、情報科学の様々な場面で見られる話題であり、入力の疎性を利用した高速アルゴリズムの設計は一般的に広く利用される技術である。本研究はグラフの実現問題に対し、入力グラフの代数的・幾何的性質を利用することで、さらに高度で独創的な解法の提案に成功した。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (21 results)

All 2018 2017 2016 Other

All Int'l Joint Research (6 results) Journal Article (8 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 1 results,  Acknowledgement Compliant: 5 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 7 results,  Invited: 5 results)

  • [Int'l Joint Research] Queen Mary University of London(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Eotvos Lorand University(ハンガリー)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] CWI(Netherlands)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Eotvos Lorand University/Budapest University of Technology(ハンガリー)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Lancaster University(英国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] CWI(オランダ)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Global rigidity of two-dimensional frameworks2018

    • Author(s)
      Bill Jackson, Tibor Jordan, and Shin-ichi Tanigawa
    • Journal Title

      Handbook of Geometric Constraint Systems Principles

      Volume: 21

    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Rigidity of Body-bar-hinge Frameworks2018

    • Author(s)
      Csaba Kiraly and Shin-ichi Tanigawa
    • Journal Title

      Handbook of Geometric Constraint Systems Principles

      Volume: 20

    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Perfect elimination orderings for symmetric matrices2018

    • Author(s)
      Monique Laurent and Shin-ichi Tanigawa
    • Journal Title

      Optimization Letters

      Volume: 印刷中 Issue: 2 Pages: 339-353

    • DOI

      10.1007/s11590-017-1213-y

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Global Rigidity of Triangulations with Braces2017

    • Author(s)
      Tibor Jordan and Shin-ichi Tanigawa
    • Journal Title

      論文誌投稿済

      Volume: -

    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A structural characterization for certifying Robinsonian matrices2017

    • Author(s)
      Monique Laurent, Matteo Seminaroti, and Shin-ichi Tanigawa
    • Journal Title

      arXiv:1701.00806v1

      Volume: -

    • Related Report
      2016 Research-status Report
    • Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Global rigidity of periodic graphs under fixed lattice representations2016

    • Author(s)
      Viktoria Kaszanitzky, Bernd Schulze, and Shin-ichi Tanigawa
    • Journal Title

      arXiv:1612.01379v1

      Volume: -

    • Related Report
      2016 Research-status Report
    • Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Singularity degree of the positive semidefinite matrix completion problem2016

    • Author(s)
      Shin-ichi Tanigawa
    • Journal Title

      arXiv

      Volume: 1603.09586 Pages: 1-26

    • Related Report
      2015 Research-status Report
    • Open Access / Acknowledgement Compliant
  • [Journal Article] The signed positive semidefinite matrix completion problem for odd-K4 minor free signed graphs2016

    • Author(s)
      Shin-ichi Tanigawa
    • Journal Title

      arXiv

      Volume: 1603.08370 Pages: 1-28

    • Related Report
      2015 Research-status Report
    • Open Access / Acknowledgement Compliant
  • [Presentation] Combinatorics of Body-bar-hinge Frameworks2018

    • Author(s)
      Shinichi Tanigawa
    • Organizer
      Bond-node structures: rigidity, combinatorics and chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Global rigidity of triangulations with braces2017

    • Author(s)
      谷川眞一
    • Organizer
      10th Japanese-Hungarian Symposium on Discrete Mathematics and Its Applications
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On the singularity degree of graphs2016

    • Author(s)
      Shin-ichi Tanigawa
    • Organizer
      20th Conference of the International Linear Algebra Society (ILAS)
    • Place of Presentation
      Leuven, Belgium
    • Year and Date
      2016-07-11
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Singularity degree of graphs2016

    • Author(s)
      Shin-ichi Tanigawa
    • Organizer
      Lancaster rigidity meeting
    • Place of Presentation
      Lancaster, UK
    • Year and Date
      2016-06-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Universal rigidity, singularity degree, and metric polytopes of signed graphs2016

    • Author(s)
      Shin-ichi Tanigawa
    • Organizer
      ICMS: Geometric rigidity theory and applications
    • Place of Presentation
      Edinburgh, UK
    • Year and Date
      2016-05-30
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Universal rigidity, singularity degree, and metric polytope2016

    • Author(s)
      谷川眞一
    • Organizer
      Geometric rigidity theory and applications
    • Place of Presentation
      Edinburgh
    • Year and Date
      2016-05-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Singularity Degree of the Positive Semidefinite Matrix Completion Problem2016

    • Author(s)
      Shin-ichi Tanigawa
    • Organizer
      DIMACS Workshop on Distance Geometry
    • Place of Presentation
      New Brunswick, USA
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2015-04-16   Modified: 2022-02-21  

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