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Geometric study of potentials and optimal art gallery problem

Research Project

Project/Area Number 25610014
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Geometry
Research InstitutionChiba University (2015-2016)
Tokyo Metropolitan University (2013-2014)

Principal Investigator

Imai Jun  千葉大学, 大学院理学研究科, 教授 (70221132)

Co-Investigator(Renkei-kenkyūsha) HAMADA TATSUYOSHI  日本大学, 生物資源学部, 准教授 (90299537)
Project Period (FY) 2013-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsRiesz ポテンシャル / 美術館問題 / プログラミング / 正則化 / ポテンシャル / 結び目のエネルギー / 幾何 / 最適化 / min-max / ポテンシャル論 / 凸幾何学 / 国際研究者交流
Outline of Final Research Achievements

(1) Any critical point of a potential with kernel being a monotone function of the distance is included in a minimal unfolded region. Some geometric properties of the minimal unfolded regions have been given. (2) Regularization of the Riesz potential and Riesz energy of a submanifold of the Euclidean space is given. Some of the residues of the Riesz energy thus obtained of a compact body have been computed (joint work with Gil Solanes). (3) A program for the optimal art-gallery problem, which seeks for an optimal position of cameras to monitor a given gallery, has been obtained via outsourcing. (4) A program that can deform a given knot in the unit 3-sphere to decrease the energy has been obtained by outsourcing to Wolfram.

Report

(5 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (15 results)

All 2017 2015 2014 2013 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (3 results)

  • [Int'l Joint Research] バルセロナ自治大学(スペイン)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Möbius invariant energies and average linking with circles2015

    • Author(s)
      Jun O'Hara(今井淳), Gil Solanes
    • Journal Title

      Tohoku Math. Journal

      Volume: 67 Issue: 1 Pages: 51-82

    • DOI

      10.2748/tmj/1429549579

    • NAID

      130007961973

    • Related Report
      2015 Research-status Report 2014 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Minimal unfolded regions of a convex hull and parallel bodies2015

    • Author(s)
      Jun O'Hara
    • Journal Title

      Hokkaido Math. J.

      Volume: 44 Pages: 175-183

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Isoperimetric characterization of the incenter of a triangle2013

    • Author(s)
      Jun O'Hara
    • Journal Title

      Elem. Math.

      Volume: 68 Issue: 2 Pages: 78-82

    • DOI

      10.4171/em/223

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] The configuration space of equilateral and equiangular hexagons2013

    • Author(s)
      Jun O'Hara
    • Journal Title

      Osaka J. Math.

      Volume: 50 Pages: 477-489

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Application of spaces of subspheres to conformal invariants of curves and canal surfaces2013

    • Author(s)
      Remi Langevin, Jun O'Hara, Shigehiro Sakata
    • Journal Title

      Ann. Polon. Math.

      Volume: 108 Issue: 2 Pages: 109-131

    • DOI

      10.4064/ap108-2-1

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Measure of a 2-component link2013

    • Author(s)
      Jun O'Hara
    • Journal Title

      Tohoku Math. J.

      Volume: 65 Pages: 427-440

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] From energy of knots to regularized Riesz energy of submanifolds2017

    • Author(s)
      Jun O'Hara
    • Organizer
      The 12th East Asian School of Knots and Related Topics
    • Place of Presentation
      The University of Tokyo (東京都・目黒区)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 部分多様体のRiesz エネルギーの正則化2017

    • Author(s)
      今井 淳
    • Organizer
      日本数学会年会
    • Place of Presentation
      首都大学東京 (東京都・八王子市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] Regularization of energies of knots and surfaces2015

    • Author(s)
      Jun O'Hara
    • Organizer
      Geometric energies with links to applications, topology and open problems
    • Place of Presentation
      スイス バーゼル
    • Year and Date
      2015-09-03
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Moebius invariant energies and average linking with circles2014

    • Author(s)
      J. O'Hara
    • Organizer
      A workshop on renormalized energies
    • Place of Presentation
      埼玉大学
    • Year and Date
      2014-07-29
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Three topics in knot energies2013

    • Author(s)
      Jun O'Hara
    • Organizer
      Geometric knot theory
    • Place of Presentation
      MFO オーベルヴォルファッハ(ドイツ)
    • Related Report
      2013 Research-status Report
  • [Remarks] Research

    • URL

      https://sites.google.com/site/junohara/home/research

    • Related Report
      2016 Annual Research Report
  • [Remarks] 研究報告

    • URL

      https://sites.google.com/site/junohara/ri-ben-yu/yan-jiu-bao-gao

    • Related Report
      2015 Research-status Report
  • [Remarks] 研究報告

    • URL

      http://www.comp.tmu.ac.jp/knotNRG/math/nenjij.html

    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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