Updated on 2025/10/25

写真a

 
ONODERA Michiaki
 
Organization
School of Science Associate Professor
Title
Associate Professor
External link

Degree

  • Doctor of Science ( Tohoku University )

Research Interests

  • Variational problems

  • 変分問題

  • Geometric evolution equations

  • 幾何学的発展方程式

Research Areas

  • Natural Science / Mathematical analysis

Research History

  • Institute of Science Tokyo   School of Science, Department of Mathematics

    2024.10

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  • Tokyo Institute of Technology   School of Science, Department of Mathematics

    2016.4 - 2024.9

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  • Kyushu University, Institute of Mathematics for Industry

    2013.1 - 2016.3

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  • Tohoku University, Graduate School of Science, Department of Mathematics   Assistant Professor

    2011.4 - 2012.12

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Professional Memberships

Papers

  • The interior Backus problem: Local resolution in Hölder spaces

    Toru Kan, Rolando Magnanini, Michiaki Onodera

    Journal of Differential Equations   2024.2

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jde.2023.10.050

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  • 形状最適化問題

    小野寺 有紹

    Vol. 716   2023.2

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    Language:Japanese   Publisher:数理科学,特集「極値問題を考える --- 最大,最小をいかにしてとらえるか」  

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  • Linear stability analysis of overdetermined problems with non-constant data

    Michiaki Onodera

    Math. Eng.   Vol. 5 ( No. 3 )   2022.8

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    Language:English   Publishing type:Research paper (scientific journal)  

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  • Backus problem in geophysics: a resolution near the dipole in fractional Sobolev spaces

    Toru Kan, Rolando Magnanini, Michiaki Onodera

    Nonlinear Differential Equations and Applications NoDEA   29 ( 3 )   2022.5

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media {LLC}  

    DOI: 10.1007/s00030-022-00749-4

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  • 過剰決定問題の発展方程式的解析

    小野寺 有紹

    数学   Vol. 74 ( No. 2 )   2022.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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  • 偏微分方程式とポテンシャル

    小野寺有紹

    2022.3

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    Language:Japanese   Publisher:特集「ポテンシャルを探る --- 様々な数理への浸透と発展」, 42--48, 数理科学 {\bf 705}, サイエンス社, 2022.  

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  • Linear stability estimates for Serrin’s problem via a modified implicit function theorem

    Alexandra Gilsbach, Michiaki Onodera

    Calculus of Variations and Partial Differential Equations   60 ( 6 )   2021.12

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media {LLC}  

    DOI: 10.1007/s00526-021-02107-1

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  • Stability analysis of an overdetermined fourth order boundary value problem via an integral identity

    Yuya Okamoto, Michiaki Onodera

    Journal of Differential Equations   2021.11

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jde.2021.08.017

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  • Hyperbolic Solutions to Bernoulli’s Free Boundary Problem

    Antoine Henrot, Michiaki Onodera

    Archive for Rational Mechanics and Analysis   240 ( 2 )   761 - 784   2021.5

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media {LLC}  

    DOI: 10.1007/s00205-021-01620-z

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  • Remarks on the large time behavior of the L^2-norm of solutions to strongly damped wave equations

    R. Ikehata, M. Onodera

    Differential Integral Equations   Volume 30 ( Number 7-8 )   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

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  • Dynamical approach to an overdetermined problem in potential theory

    Michiaki Onodera

    J. Math. Pures Appl.   Vol. 106 ( No. 4 )   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    We introduce a new approach for studying the uniqueness and stability of a domain admitting the solvability of an overdetermined problem.
    One of the key observations is that the deformation of a continuously varying domain for a parametrized overdetermined problem forms an analytic semiflow.
    This allows us to obtain the uniqueness of a domain for the original ``stationary'' overdetermined problem together with a quantitative estimate of its shape by clarifying the dynamical structure of the semiflow.

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  • On a dynamical approach to an inverse problem in potential theory

    小野寺 有紹

    数理解析研究所講究録   Vol. 1979   2015.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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  • 求積公式の幾何学

    小野寺有紹

    数理科学 特集「幾何学と解析学の対話」   2015.10

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    Language:Japanese  

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  • Geometric flows for quadrature identities Reviewed

    Michiaki Onodera

    MATHEMATISCHE ANNALEN   361 ( 1-2 )   77 - 106   2015.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s00208-014-1062-2

    Web of Science

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  • On the symmetry in a heterogeneous overdetermined problem Reviewed

    Michiaki Onodera

    BULLETIN OF THE LONDON MATHEMATICAL SOCIETY   47 ( No. 1 )   95 - 100   2015.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1112/blms/bdu098

    Web of Science

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  • Asymptotic analysis of solutions to a gauged O(3) sigma model

    Michiaki Onodera

    Ann. Inst. H. Poincare Anal. Non Lineaire   Vol. 32 ( No. 3 )   2014.4

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    Language:English   Publishing type:Research paper (scientific journal)  

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  • Variational methods in differential equations

    Michiaki Onodera

    Vol. 5   2014

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    Language:English   Publisher:A Mathematical Approach to Research Problems of Science and Technology  

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  • On the shape of solutions to an integral system related to the weighted Hardy-Littlewood-Sobolev inequality

    Michiaki Onodera

    JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS   389 ( 1 )   498 - 510   2012.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jmaa.2011.12.004

    Web of Science

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  • STABILITY OF THE INTERFACE OF A HELE-SHAW FLOW WITH TWO INJECTION POINTS

    Michiaki Onodera

    SIAM JOURNAL ON MATHEMATICAL ANALYSIS   43 ( 4 )   1810 - 1834   2011

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1137/110821603

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  • Asymptotics of Hele-Shaw flows with multiple point sources

    Michiaki Onodera

    Proceedings of the Royal Society of Edinburgh Section A: Mathematics   140 ( 6 )   1217 - 1247   2010.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1017/S0308210509000766

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MISC

Research Projects

  • アインシュタイン方程式の幾何学–理論物理学と重力波天文学との邂逅–

    Grant number:24H00183  2024.4 - 2029.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    山田 澄生, 安東正樹, 儀我美一, 服部広大, 伊形尚久, 小野寺有紹, 高津飛鳥, 白水徹也

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    Grant amount:\46930000 ( Direct Cost: \36100000 、 Indirect Cost:\10830000 )

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  • Canonical mean curvature flow and its application to evolution problems

    Grant number:23H00085  2023.4 - 2028.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Grant amount:\44330000 ( Direct Cost: \34100000 、 Indirect Cost:\10230000 )

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  • Singularity analysis of complex functions for describing complex phenomena

    Grant number:23H00086  2023.4 - 2028.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Grant amount:\44200000 ( Direct Cost: \34000000 、 Indirect Cost:\10200000 )

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  • 非コンパクト型変分問題の爆発・消失現象と領域・作用素の特異幾何構造の相関

    Grant number:23K25781  2023.4 - 2027.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    高橋 太, 石渡 通徳, 内免 大輔, 壁谷 喜継, 小野寺 有紹, 橋詰 雅斗, 佐野 めぐみ

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    Grant amount:\15730000 ( Direct Cost: \12100000 、 Indirect Cost:\3630000 )

    本研究課題では、変分法の直接法が適用される変分問題のうち、その最小化列や近似解の列の相対コンパクト性が、方程式のスケール変換不変性に基づく爆発現象や、領域の非有界性に基づく消失現象によって喪失し得る「非コンパクト型」の変分問題を取り扱い、近似解の列がコンパクト性を喪失する関数解析的なメカニズムと、変分問題の設定されている領域の特異的な幾何構造、及び汎関数に含まれる微分作用素やポテンシャル関数の特異構造との関係を定量的に解明することを目的とする。より具体的には、以下に掲げる課題について研究を推進する。
    (1)非正則領域上での臨界 Sobolev 型方程式の爆発解析、及び臨界 Hardy 不等式に関わる最小化問題の達成可能性
    (2)主部の微分作用素が準線形、非等方、非斉次である臨界 Sobolev 型方程式の爆発解析(3)体積有限非有界領域上での変分問題と消失現象による非コンパクト性
    <BR>
    本年度は研究分担者の佐野めぐみ氏と推進していた重み付き積分平均がゼロとなる関数に対する2次元臨界型 Hardy 不等式の解析が進展し、研究論文として取りまとめ、専門誌で公刊することができた。また、多年にわたり国際共同研究を推進しているミラノ大学のグループと 13th AIMS (at Wilmington) で Special Session を組織し、国内外の研究者を招聘して関数不等式にかかわる変分問題についての研究動向情報の交換を行った。

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  • 非コンパクト型変分問題の爆発・消失現象と領域・作用素の特異幾何構造の相関

    Grant number:23H01084  2023.4 - 2027.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    高橋 太, 石渡 通徳, 内免 大輔, 小野寺 有紹, 壁谷 喜継, 橋詰 雅斗, 佐野 めぐみ

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    Grant amount:\15730000 ( Direct Cost: \12100000 、 Indirect Cost:\3630000 )

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  • Dynamical analysis of foliated structure in free boundary problems

    Grant number:22KK0230  2023 - 2025

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))

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    Grant amount:\12610000 ( Direct Cost: \9700000 、 Indirect Cost:\2910000 )

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  • New development on higher order elliptic and parabolic PDEs -- cooperation between harmonic analysis and geometric analysis

    Grant number:20KK0057  2020.10 - 2025.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

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    Grant amount:\18070000 ( Direct Cost: \13900000 、 Indirect Cost:\4170000 )

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  • 力学系的解析による過剰決定問題の大域的解構造の解明

    Grant number:20K03673  2020.4 - 2024.3

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    小野寺 有紹

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    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

    Bernoulli の自由境界問題,Serrin の問題を含む一般の過剰決定問題に対し有効な函数解析的手法を確立し,解の葉層構造の存在や,境界条件の摂動に対する領域形状の定量的安定性を導出した.本研究内容は研究雑誌「Archive for Rational Mechanics and Analysis」に投稿,掲載された他,幾つかの研究集会において口頭発表を行った.
    また,Serrin の対称性の結果が著名な Saint-Venent 問題の剛性の安定性について Alexandra Gilsbach 氏と共同研究をして得た成果である最適な定量的評価を論文にまとめ,研究雑誌「Calculus of Variations and Partial Differential Equations」に投稿・掲載されるとともに,それを幾つかの研究集会の場で発表した.特に,ここで得られた陰函数定理は幾分かの微分の損失を許すもので汎用性が高いものである.実際,非定数な境界条件下での過剰決定問題に対する安定性に対しても,この方法を応用し,今まで得られていなかった最良の定量的安定性評価を導出することにも成功した.
    <BR>
    一方,高階楕円型方程式の過剰決定問題に対する定量的安定性評価については,当時大学院生だった岡本氏と共著で論文を執筆し,研究雑誌「Journal of Differential Equations」に投稿・掲載された.
    <BR>
    さらに,正則性損失構造から従来解析が困難だった地球物理学における数理モデルであるBackus問題に関して,その双極子解の摂動問題を考察し,軸対称性の仮定下では正則性損失が起こらないことを発見し,詳細なスペクトル解析を行うことで,その摂動問題の可解性を初めて得ることに成功した.本結果は雑誌「Nonlinear Differential Equations and Applications」に投稿・掲載が確定している.

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  • Multifaceted studies on dynamical problems in the calculus of variations using geometric measure theory

    Grant number:18H03670  2018.4 - 2023.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Grant amount:\42770000 ( Direct Cost: \32900000 、 Indirect Cost:\9870000 )

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  • The Einstein Equation and Three Dimensional Manifolds

    Grant number:17H01091  2017.4 - 2022.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Grant amount:\43810000 ( Direct Cost: \33700000 、 Indirect Cost:\10110000 )

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  • 楕円型過剰決定問題の発展方程式的解析

    Grant number:16K17628  2016.4 - 2023.3

    日本学術振興会  科学研究費助成事業  若手研究(B)

    小野寺 有紹

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    Grant amount:\4030000 ( Direct Cost: \3100000 、 Indirect Cost:\930000 )

    Bernoulli の自由境界問題,Serrin の問題を含む一般の過剰決定問題に対し有効な函数解析的手法を確立し,解の葉層構造の存在や,境界条件の摂動に対する領域形状の定量的安定性を導出した.本研究内容は研究雑誌「Archive for Rational Mechanics and Analysis」に投稿,掲載された他,幾つかの研究集会において口頭発表を行った.
    また,Serrin の対称性の結果が著名な Saint-Venent 問題の剛性の安定性について Alexandra Gilsbach 氏と共同研究をして得た成果である最適な定量的評価を論文にまとめ,研究雑誌「Calculus of Variations and Partial Differential Equations」に投稿・掲載されるとともに,それを幾つかの研究集会の場で発表した.特に,ここで得られた陰函数定理は幾分かの微分の損失を許すもので汎用性が高いものである.実際,非定数な境界条件下での過剰決定問題に対する安定性に対しても,この方法を応用し,今まで得られていなかった最良の定量的安定性評価を導出することにも成功した.
    <BR>
    一方,高階楕円型方程式の過剰決定問題に対する定量的安定性評価については,当時大学院生だった岡本氏と共著で論文を執筆し,研究雑誌「Journal of Differential Equations」に投稿・掲載された.
    <BR>
    さらに,正則性損失構造から従来解析が困難だった地球物理学における数理モデルであるBackus問題に関して,その双極子解の摂動問題を考察し,軸対称性の仮定下では正則性損失が起こらないことを発見し,詳細なスペクトル解析を行うことで,その摂動問題の可解性を初めて得ることに成功した.本結果は雑誌「Nonlinear Differential Equations and Applications」に投稿・掲載が確定している.

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  • Relation between pattern formations and complex singularities of solutions of nonlinear partial differential equations

    Grant number:16K13778  2016.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    Ninomiya Hirokazu

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    Grant amount:\3640000 ( Direct Cost: \2800000 、 Indirect Cost:\840000 )

    We showed the analytic extension of the solution of a reaction-diffusion equation into complex domain. However, in general, the complex singularities appear. To study the motion of the singularities, we consider the heat equation and the Allen-Cahn-Nagumo equation. For the Allen-Cahn-Nagumo equation, we study the motion of the complex singularities of the exact solutions. We tried to extend the properties derived from this observation into the case for general nonlinearity.
    Moreover, we study the bifurcation from infinity and we get the result which generalizes the results of Stuart and Rabinowitz into the multi-component reaction-diffusion systems.

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  • New methods on geometric analysis of variational problems for surfaces

    Grant number:25287012  2013.4 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    KOISO Miyuki, CHENG Qing-Ming, MIYAMOTO Umpei, EJIRI Norio

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    Grant amount:\10790000 ( Direct Cost: \8300000 、 Indirect Cost:\2490000 )

    Under given boundary conditions, minimal surfaces are critical points of area, and surfaces with constant mean curvature (CMC surfaces) are critical points of area among surfaces enclosing the same volume. Such a surface is said to be stable if it attains a local minimum of area for all admissible variations. In this research, we studied criteria for stability, existence and uniqueness of (stable) critical points, bifurcation of critical points, for fixed, free, and periodic boundary conditions.

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  • New developments on evolution equations and variational problems by geometric conservation laws

    Grant number:25800072  2013.4 - 2016.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

    Onodera Michiaki

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    Grant amount:\2860000 ( Direct Cost: \2200000 、 Indirect Cost:\660000 )

    An inverse problem in potential theory asks if, for a given potential, there is a unique surface which exactly induces the same gravitational potential as the given one. Although the problem has a variational structure from which the existence of a desired surface follows, the uniqueness question had not been clarified for decades because of the lack of information on the shape of the functional corresponding to the variational structure.
    My research shows that the corresponding surface is actually unique if the given potential is close to a radially symmetric one. This is the first result asserting the uniqueness for asymmetric situation, to the best of my knowledge. The proof is based on the consideration of a parametrized auxiliary problem which produces a family of surfaces satisfying an evolution equation. I clarified the dynamical structure of the evolution equation and derived the uniqueness conclusion together with a quantitative estimate for the shape of the surface.

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  • 幾何学的発展方程式による変分問題の解析

    2012

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    Grant type:Competitive

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  • Geometric evolution equations applied to variational problems

    2012

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    Grant type:Competitive

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  • 幾何学的保存則による自由境界問題の解析

    2009

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    Grant type:Competitive

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  • Analysis of free boundary problems by geometric conservation laws

    2009

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    Grant type:Competitive

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