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On a stability estimate for the identification of unknown inclusions for inverse boundary value problems

Research Project

Project/Area Number 15K17555
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Basic analysis
Research InstitutionUniversity of Hyogo

Principal Investigator

Nagayasu Sei  兵庫県立大学, 物質理学研究科, 准教授 (90455684)

Project Period (FY) 2015-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords安定性評価 / 逆問題 / 関数方程式論
Outline of Final Research Achievements

We consider identification of unknown inclusions for inverse boundary value problems. Our aim is to analyse stability for the inverse problems, in particular, influence of the location and so on of inclusions on the stability. Hence when we derive stability estimates, we need to take notice of dependence of the constants in the stability estimates on the inclusions. Now we have some ideas to express some explicit solutions needed in order to achieve our aim. I will continue to analyse this problem using these ideas.

Academic Significance and Societal Importance of the Research Achievements

逆問題に於いて, 安定性とは, 観測データの変動が連続的ならば未知情報の変動も連続的となるかどうか, 言い換えると, 二つの観測データの差が十分小さければ, 夫々に対応する未知情報の差も小さいかどうか, ということである. 実際の観測では誤差の混入は避けられない. そして安定性は, 誤差を含む観測データが与えられたときに, それに対応する未知情報が真の未知情報に十分近いかどうかを判断する一つの目安となる. 安定性評価の解析は, 観測データから未知情報を推測したときのその推測の妥当性を保証する上でも重要であると思われる.

Report

(6 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Presentation (1 results) (of which Invited: 1 results) Funded Workshop (4 results)

  • [Int'l Joint Research] 国立台湾大学(台湾)

    • Related Report
      2017 Research-status Report
  • [Presentation] Increasing stabilities in inverse problems for the acoustic equation and the Schroedinger equation2017

    • Author(s)
      永安聖
    • Organizer
      若手研究集会 「波動・振動・流れの制御と逆問題 -理論と数値計算-」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Funded Workshop] 偏微分方程式姫路研究集会2019

    • Related Report
      2018 Research-status Report
  • [Funded Workshop] 偏微分方程式姫路研究集会2018

    • Related Report
      2017 Research-status Report
  • [Funded Workshop] 偏微分方程式姫路研究集会2017

    • Place of Presentation
      兵庫県姫路市
    • Year and Date
      2017-03-06
    • Related Report
      2016 Research-status Report
  • [Funded Workshop] 偏微分方程式姫路研究集会2016

    • Place of Presentation
      兵庫県姫路市
    • Year and Date
      2016-03-02
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2022-11-04  

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