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Research on estimation of the shape of unknown portions of a domain varying with time and on algorithms for reconstruction of the shape

Research Project

Project/Area Number 21540160
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Basic analysis
Research InstitutionAkita University

Principal Investigator

KAWAKAMI Hajime  秋田大学, 大学院・工学資源学研究科, 准教授 (20240781)

Research Collaborator TSUCHIYA Masaaki  金沢大学, 名誉教授
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords逆問題 / 形状推定 / 放物型方程式 / 混合型境界条件 / Feynman-Kac型公式 / 弱解 / 関数方程式
Research Abstract

When the shape of a portion of the face of an object or the shape of several internal cavities of an object is unknown, the shape may be estimated by using thermal data from measurements on an accessible portion of the face. In this research, we studied such an inverse problem for the shape which may vary with time. Then we focused on the unique determination problem: whether the unknown shape can be uniquely determined from the thermal data or not. Solving the unique determination problem is firstly requested for the inverse problem. We demonstrated some sufficient conditions for the unique determination.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (5 results)

All 2011 2010

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results)

  • [Journal Article] Uniqueness in shape identification of a time-varying domain and related parabolic equations on non-cylin-drical domains2011

    • Author(s)
      Hajime Kawakami and Masaaki Tsuchiya
    • Journal Title

      Inverse Problems

      Volume: vol.26(125007) Pages: 34-34

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Uniqueness in shape identification of a time-varying domain andrelated parabolic equations on non-cylindrical domains2010

    • Author(s)
      Hajime Kawakami, Masaaki Tsuchiya
    • Journal Title

      Inverse Problems

      Volume: 26 Pages: 125007-34

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 温度データによる、時間的に変動する領域の境界形状の同定の一意性について2010

    • Author(s)
      河上肇, 土谷正明
    • Organizer
      研究集会「偏微分方程式の逆問題解析とその周辺分野に関する研究」
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2010-06-22
    • Related Report
      2011 Final Research Report 2010 Annual Research Report
  • [Presentation] 時間的変動を許した領域の形状の温度データによる同定問題の一意性について2010

    • Author(s)
      河上肇, 土谷正明
    • Organizer
      日本数学会2010年度年会
    • Place of Presentation
      慶応義塾大学
    • Year and Date
      2010-03-26
    • Related Report
      2011 Final Research Report
  • [Presentation] 時間的変動を許した領域の形状の温度データによる同定問題の一意性について2010

    • Author(s)
      河上肇, 土谷正明
    • Organizer
      日本数学会2010年度年会
    • Place of Presentation
      慶応義塾大学(神奈川県)
    • Year and Date
      2010-03-26
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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