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Singularity analysis of complex functions for describing complex phenomena

Research Project

Project/Area Number 23H00086
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 12:Analysis, applied mathematics, and related fields
Research InstitutionKyoto University

Principal Investigator

坂上 貴之  京都大学, 理学研究科, 教授 (10303603)

Co-Investigator(Kenkyū-buntansha) 横山 知郎  埼玉大学, 理工学研究科, 教授 (30613179)
榊原 航也  金沢大学, 数物科学系, 准教授 (30807772)
宮廻 裕樹  東京大学, 大学院情報理工学系研究科, 講師 (40881206)
小野寺 有紹  東京科学大学, 理学院, 准教授 (70614999)
奈良 高明  東京大学, 大学院情報理工学系研究科, 教授 (80353423)
Project Period (FY) 2023-04-01 – 2028-03-31
Project Status Granted (Fiscal Year 2026)
Budget Amount *help
¥44,200,000 (Direct Cost: ¥34,000,000、Indirect Cost: ¥10,200,000)
Fiscal Year 2026: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2025: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2024: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2023: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Keywords複素解析 / 特異点解析 / 逆解析 / 自由境界問題 / 基本解解法
Outline of Research at the Start

本研究課題は複素関数の動的特異点解析を用いて (P1) トポロジカル特異点フロー解析による非線形波動の数値解析,(P2) 特異点最適化による基本解解法の高度化と確率論・自由境界問題への応用,(P3) 特異点逆解析と特異点解析の三次元化による点ソース同定の逆問題への応用,(P4) 動的特異点解析によるベルヌーイの自由境界問題の研究,(P5) 動的特異点解析による細胞集団の配向場やトポロジカル欠陥の数理モデリング の研究を推進する.これらを通じて,特異点解析の数学理論を深化させ,応用分野を拡大する.さらに,応用数学の国際的潮流である学術基盤“応用計算複素解析(ACCA)”の進展にも貢献する.

Outline of Annual Research Achievements

各サブプロジェクトでは以下の成果を得た.(P1)で,横山はリーマン面上の1次元のレベルセット関数の極限的な振る舞いを完全に記述した.また,非有界なリーマン面上の向き付け可能な配向場が1次元のレベルセット関数として表される場合を特徴づけた.加えて,坂上とともに(P5)の配向場やトポロジカル欠陥の構造安定性を記述する手がかりを得た.(P2)では,榊原が,高次元球領域上での基本解解法の数学解析を行った.球面上にランダムに選点を,それらを相似拡大した場所に特異点を配置した際に一意近似解の存在を示し,その近似誤差の上からの評価を得た.(P3)で,奈良は四元数による三次元ポテンシャル場の特異点逆解析手法として,ポテンシャル場の物理的媒体の時空間変化を等価的な特異点とみなす検出法を開発した.(P4)では,小野寺が平面領域におけるベルヌーイの自由境界問題に対するFlucher-Rumpf予想について考察した.特に,一般単連結領域の場合に,Robin 関数の非退化極小点に集中する双曲型自由境界の近似解を構成し,それが非退化であることを示した.(P5)では,宮廻,奈良,坂上および研究協力者の三好によって単連結・二重連結領域におけるネマチック弾性エネルギーの陽公式を構築した.さらに,この理論を拡張し,境界上に特異点を持つ多角形領域におけるエネルギー計算法も構築した.また,(P1)で研究されている配向場表現法の具体的な応用に向け,ネマチック液晶における配向場の流線の構成法を宮廻,三好,奈良らが構築した.最後にACCAの国際研究連携を推進し,Physica DのSpecial Issueを完成させた.1月に京都大学において国際ワークショップ「One-day workshop on ACCA」を開催した.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

(P1)-(P5)で設定した個別の課題の研究も順調に進んでいる.またこの計画で重視している(P1)-(P5)の課題の横断的連携活動も継続しており,発展が期待できる.Applied and Computational Complex Analysis (ACCA) の国際的な研究連携活動も活発に継続している.

Strategy for Future Research Activity

(P1)から(P5)の研究項目において代表者と分担者の綿密な連携により,以下の課題に取り組む.(P1)では,リーマン面上の関数の特異点分布に対して,それによって生成される勾配流の流線トポロジーの計算可能な具体的な表現を創出し,その一般的な遷移を記述する手法を確立する.ここで得られた流線トポロジーの離散構造表現法を,(P5)のネマチック液晶における配向場の流線の構成法に応用する.(P2)では,多様体上の調和測度の数値解析に取り組み始める.また,基本解解法に基づいた逆問題手法の構築に取り組む.(P3)では,四元数を用いた三次元ポテンシャル場特異点逆解析手法を開発する.また,基本解近似解法をポテンシャル場の補外問題に応用する.(P4)ではベルヌーイ自由境界問題の自由境界の凝集現象および漸近形状について,多重連結領域の場合を含めた一般的状況下において理論的および数値的解析を行う.また上記解析で培った摂動論を用いて基本解解法の近似精度に関する最適化問題を考察する.(P5)では,点渦力学における形状微分法を基盤として,細胞集団中の所望の位置にトポロジカル欠陥を配置する境界形状を決定するための逆問題解法を構築する.研究推進のための全体ミーティングを開催し,上記研究を推進し,成果の共有と今後のさらなる研究項目間の連携が進むようにする.また,各研究項目の研究進捗状況を定期的に確認する機会を設けて,上記方針に従った着実な研究達成に向けた連携活動を行う.応用数理学会や日本数学会など関連する国内の研究集会に参加して研究情報の収集や研究発表を行うと同時に,海外における研究集会での情報収集や成果発表を行う.また,当該分野の国際的な研究者ネットワークの拡大を図る.特に当該分野に関連の深いVikas Krishnamurthy氏やLesley Ward氏との交流を重視して行う.

Report

(3 results)
  • 2024 Annual Research Report
  • 2023 Comments on the Screening Results   Annual Research Report
  • Research Products

    (79 results)

All 2025 2024 2023 Other

All Int'l Joint Research (11 results) Journal Article (17 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 17 results,  Open Access: 7 results) Presentation (49 results) (of which Int'l Joint Research: 21 results,  Invited: 25 results) Funded Workshop (2 results)

  • [Int'l Joint Research] IITハイデラバード(インド)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] インペリアルカレッジロンドン(英国)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] 南オーストラリア大学(オーストラリア)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] フィレンツェ大学(イタリア)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] ポルト大学(ポルトガル)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] インド工科大学ハイデラバード校(インド)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] McMaster University(カナダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of California San Diego/Wichita State University/University of Pennsylvania(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ポルト大学(ポルトガル)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Florence(イタリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Equivalent local force conditions minimizing the Frank free energy for topological defect equilibria in nematic liquid crystals2025

    • Author(s)
      Miyoshi Hiroyuki、Crowdy Darren G.、Miyazako Hiroki、Nara Takaaki
    • Journal Title

      Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences

      Volume: 481 Issue: 2308 Pages: 20240569-20240569

    • DOI

      10.1098/rspa.2024.0569

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Defect pairs in nematic cell alignment on doubly connected domains2024

    • Author(s)
      Miyazako Hiroki、Sakajo Takashi
    • Journal Title

      Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences

      Volume: 480 Issue: 2292 Pages: 20230879-20230879

    • DOI

      10.1098/rspa.2023.0879

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Free energy formulae for confined nematic liquid crystals based on analogies with Kirchhoff-Routh theory in vortex dynamics2024

    • Author(s)
      Miyoshi Hiroyuki、Miyazako Hiroki、Nara Takaaki
    • Journal Title

      Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences

      Volume: 480 Issue: 2300 Pages: 20240405-20240405

    • DOI

      10.1098/rspa.2024.0405

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A thresholding algorithm for Willmore-type flows via fourth-order linear parabolic equation2024

    • Author(s)
      Ishii Katsuyuki、Kohsaka Yoshihito、Miyake Nobuhito、Sakakibara Koya
    • Journal Title

      Interfaces and Free Boundaries, Mathematical Analysis, Computation and Applications

      Volume: 27 Issue: 2 Pages: 235-283

    • DOI

      10.4171/ifb/533

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On a singular limit of the Kobayashi-Warren-Carter energy2024

    • Author(s)
      Giga Yoshikazu, Okamoto Jun, Sakakibara Koya, Uesaka Masaaki
    • Journal Title

      Indiana University Mathematics Journal

      Volume: 73 Issue: 4 Pages: 1453-1491

    • DOI

      10.1512/iumj.2024.73.9890

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical Analysis of the Plateau Problem by the Method of Fundamental Solutions2024

    • Author(s)
      Sakakibara Koya、Shimizu Yuuki
    • Journal Title

      Journal of Scientific Computing

      Volume: 100 Issue: 1 Pages: 1-20

    • DOI

      10.1007/s10915-024-02551-z

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Image segmentation of flame front of smoldering experiment by gradient flow of curves2024

    • Author(s)
      Kolar Miroslav, Yazaki Shigetoshi, Sakakibara Koya
    • Journal Title

      Proceedings of the Conference Algoritmy 2024

      Volume: 22 Pages: 119-128

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Poincar??Bendixson theorem for flows with arbitrarily many singular points2024

    • Author(s)
      Yokoyama Tomoo
    • Journal Title

      Studia Mathematica

      Volume: 278 Issue: 2 Pages: 99-172

    • DOI

      10.4064/sm230506-9-9

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Topological characterizations of Hamiltonian flows on unbounded surfaces2024

    • Author(s)
      Yokoyama Tomoo
    • Journal Title

      Colloquium Mathematicum

      Volume: 177 Issue: 1-2 Pages: 135-160

    • DOI

      10.4064/cm8915-1-2025

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Applied and computational complex analysis in the study of nonlinear phenomena2024

    • Author(s)
      Protas Bartosz、Llewellyn Smith Stefan G.、Sakajo Takashi
    • Journal Title

      Physica D: Nonlinear Phenomena

      Volume: 460 Pages: 134025-134025

    • DOI

      10.1016/j.physd.2023.134025

    • Related Report
      2024 Annual Research Report 2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The interior Backus problem: Local resolution in Holder spaces2024

    • Author(s)
      Toru Kan, Rolando Magnanini and Michiaki Onodera
    • Journal Title

      Journal of Differential Equations

      Volume: 381 Pages: 20-47

    • DOI

      10.1016/j.jde.2023.10.050

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e381" altimg="si4.svg"><mml:mi>N</mml:mi></mml:math>-vortex problem in a doubly periodic rectangular domain with constant background vorticity2023

    • Author(s)
      Krishnamurthy Vikas S.、Sakajo Takashi
    • Journal Title

      Physica D: Nonlinear Phenomena

      Volume: 448 Pages: 133728-133728

    • DOI

      10.1016/j.physd.2023.133728

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Singular solutions of nonlinear hydrodynamic equations arising in turbulence theory2023

    • Author(s)
      Sakajo Takashi
    • Journal Title

      Sugaku Expositions

      Volume: 36 Issue: 1 Pages: 93-117

    • DOI

      10.1090/suga/478

    • NAID

      130008029694

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Statistical laws of a one-dimensional model of turbulent flows subject to an external random force2023

    • Author(s)
      Y. Tsuji and T. Sakajo
    • Journal Title

      Nonlinearity

      Volume: 36-8 Issue: 8 Pages: 4283-4302

    • DOI

      10.1088/1361-6544/acdfa3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geometric Ergodicity for Hamiltonian Monte Carlo on Compact Manifolds2023

    • Author(s)
      Takeda Kota、Sakajo Takashi
    • Journal Title

      SIAM Journal on Numerical Analysis

      Volume: 61 Issue: 6 Pages: 2994-3013

    • DOI

      10.1137/22m1543550

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dependency of the positive and negative long-time behaviors of flows on surfaces2023

    • Author(s)
      Yokoyama Tomoo
    • Journal Title

      Journal of Differential Equations

      Volume: 368 Pages: 376-393

    • DOI

      10.1016/j.jde.2023.06.008

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the reaction-diffusion type modelling of the self-propelled object motion2023

    • Author(s)
      Nagayama Masaharu, Monobe Harunori, Sakakibara Koya, Nakamura Ken-Ichi, Kobayashi Yasuaki and Kitahata Hiroyuki
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 12633-12633

    • DOI

      10.1038/s41598-023-39395-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 高次元球領域における基本解近似解法の数学解析2025

    • Author(s)
      榊原 航也
    • Organizer
      数学と現象 in 清里
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 高次元球領域における基本解近似解法の数学解析2025

    • Author(s)
      榊原 航也
    • Organizer
      非線形現象の数値シミュレーションと解析2025
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Estimation of stable defect configurations and active stress in confined active nematics by calculus of residues for director field,2025

    • Author(s)
      Hiroki Miyazako, Hiroyuki Miyoshi, Takaaki Nara
    • Organizer
      APS Global Physics Summit 2025
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 閉領域上のアクティブ・ネマティクスに基づく細胞集団におけるアクティブ応力の定量化法2025

    • Author(s)
      宮廻 裕樹, 高橋 昂佑, 三好 裕之, 奈良 高明
    • Organizer
      第72回応用物理学会春季学術講演会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 離散最適輸送問題の Bregman ダイバージェンスによる正則化2024

    • Author(s)
      榊原 航也
    • Organizer
      東京大学数値解析セミナー
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] Fractional time differential equations as a singular limit of the Kobayashi-Warren-Carter system2024

    • Author(s)
      Koya Sakakibara
    • Organizer
      The 81st Fujihara Seminar "Mathematical Aspects for Interfaces and Free Boundaries"
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 基本解近似解法による Plateau 問題の数値解析2024

    • Author(s)
      榊原 航也
    • Organizer
      東京理科大学創域理工学部数理科学科談話会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 自己駆動体の反応拡散系数理モデルとその特異極限2024

    • Author(s)
      榊原 航也
    • Organizer
      数学と現象 in 伊香保
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 正則化最適輸送問題におけるスケーリングの影響2024

    • Author(s)
      榊原 航也,高津 飛鳥,保國 惠一
    • Organizer
      日本応用数理学会2024年度年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Helfrich 型エネルギーの勾配流に対する閾値型近似アルゴリズムについて2024

    • Author(s)
      高坂 良史,石井 克幸,三宅 庸仁,榊原 航也
    • Organizer
      日本応用数理学会2024年度年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Plateau 問題に対する複数の解の数値的探索2024

    • Author(s)
      榊原 航也
    • Organizer
      力学系に対する相空間全構造解析と分岐解析の統合による新たなアプローチ
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 動く界面を(数値的に)追いかける2024

    • Author(s)
      榊原 航也
    • Organizer
      セミナーシリーズ「物理学・応用数学の数値計算最前線」
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] Advanced numerical analysis of the Plateau problem using the method of fundamental solutions2024

    • Author(s)
      Koya Sakakibara
    • Organizer
      Workshop on Numerical Analysis and Theoretical Perspectives of Nonlinear Dynamics and Complex Systems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ネマチック液晶の持つ弾性エネルギーの陽公式に基づくトポロジカル欠陥の平衡解の解析2024

    • Author(s)
      三好 裕之, 宮廻 裕樹, 奈良 高明
    • Organizer
      日本応用数理学会2024年度年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Topological control of nematic cell alignment based on complex analysis,2024

    • Author(s)
      Hiroki Miyazako
    • Organizer
      1st Digital Brain Workshop
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] フランク弾性エネルギーの陽公式に基づく細胞配向ゆらぎの定量計測2024

    • Author(s)
      宮廻裕樹, 三好裕之, 奈良高明
    • Organizer
      第41回センシングフォーラム 計測部門大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Structural stability of “incompressible” line fields on surfaces and generic intermediate line fields2024

    • Author(s)
      Tomoo Yokoyama
    • Organizer
      力学系の理論と応用
    • Related Report
      2024 Annual Research Report
  • [Presentation] Dependency of the positive and negative long-time behaviors of flows on surfaces2024

    • Author(s)
      Tomoo Yokoyama
    • Organizer
      リーマン面に関連する位相幾何学 2024
    • Related Report
      2024 Annual Research Report
  • [Presentation] A Poincare-Bendixson theorem for flows with arbitrarily many singular points2024

    • Author(s)
      Tomoo Yokoyama
    • Organizer
      Saitama Dynamics 2024
    • Related Report
      2024 Annual Research Report
  • [Presentation] Limit behaviors of flows on surfaces2024

    • Author(s)
      Tomoo Yokoyama
    • Organizer
      葉層構造論シンポジウム
    • Related Report
      2024 Annual Research Report
  • [Presentation] A perturbation theory of overdetermined boundary value problems2024

    • Author(s)
      小野寺有紹
    • Organizer
      UNIST Workshop on the Introduction to the Theory of Elliptic PDEs
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A weighted Schauder estimate for an irregular oblique derivative problem2024

    • Author(s)
      小野寺有紹
    • Organizer
      China-Japan Workshop on Nonlinear Elliptic and Parabolic Equations
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Rigidity and stability for a fourth order overdetermined problem2024

    • Author(s)
      小野寺有紹
    • Organizer
      International Conference on Elliptic and Parabolic Problems
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Vortex crystals on closed surfaces with background vorticity2024

    • Author(s)
      Takashi Sakajo
    • Organizer
      Analysis Seminar, University of Florence
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analytic models of nematic cell alignment2024

    • Author(s)
      Takashi Sakajo
    • Organizer
      Applied and Computational Complex Analysis
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On blowups of stagnation points of 2D potential flows2024

    • Author(s)
      Tomoo Yokoyama
    • Organizer
      Applied and Computational Complex Analysis
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Weighted Schauder estimates for irregular oblique derivative problems2024

    • Author(s)
      小野寺有紹
    • Organizer
      第41回九州における偏微分方程式研究集会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 変形する自己駆動体の反応拡散型モデルおよびその特異極限2024

    • Author(s)
      榊原航也
    • Organizer
      力学系に対する相空間全構造解析と分岐解析の統合による新たなアプローチ
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Structure-preserving numerical scheme for geometric flows2024

    • Author(s)
      Koya Sakakibara
    • Organizer
      MATRIX-RIMS Tandem Workshop: Evolutionary Partial Differential Equations and Appications
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 二重周期領域上のグリーン関数と点渦力学2023

    • Author(s)
      坂上貴之
    • Organizer
      日本数学会秋季分科会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ランダム偏微分方程式で記述される一次元乱流モデルの統計則2023

    • Author(s)
      坂上貴之
    • Organizer
      日本数学会秋季分科会
    • Related Report
      2023 Annual Research Report
  • [Presentation] A model of turbulent flows based on a random Constantin-Lax-Majda-DeGregorio equation2023

    • Author(s)
      Takashi Sakajo
    • Organizer
      ICIAM2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Irregular behavior in foliations2023

    • Author(s)
      Tomoo Yokoyama
    • Organizer
      Dynamics of Foliations
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 曲面上の流れの正方向と負方向の極限の振る舞いの依存性2023

    • Author(s)
      横山知郎
    • Organizer
      トポロジー火曜セミナー, 東京大学
    • Related Report
      2023 Annual Research Report
  • [Presentation] Schauder estimates via blowing up2023

    • Author(s)
      小野寺有紹
    • Organizer
      広島微分方程式セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] A perturbation theory of overdetermined boundary value problems2023

    • Author(s)
      Michiaki Onodera
    • Organizer
      The 13th AIMS Conference on Dynamical Systems, Differential
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A quantitative stability estimate for a fourth order overdetermined problem2023

    • Author(s)
      Michiaki Onodera
    • Organizer
      The 13th AIMS Conference on Dynamical Systems, Differential Equations and Applications
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 移動境界問題の構造保存型数値解析2023

    • Author(s)
      榊原航也
    • Organizer
      金沢大学数理学談話会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Structure-preserving numerical analysis of moving boundary problems with stabilization by tangential velocity2023

    • Author(s)
      榊原航也
    • Organizer
      BiMed-Math seminar
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 移動境界問題の数理解析2023

    • Author(s)
      榊原航也
    • Organizer
      自己組織化セミナー in 金沢
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Regularization of the optimal transport problem by the Bregman divergence2023

    • Author(s)
      Koya Sakakibara
    • Organizer
      One-day mini-symposium of "Czech-Japanese Seminar in Applied Mathematics"
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical computation of the Plateau problem by the method of fundamental solutions2023

    • Author(s)
      Koya Sakakibara
    • Organizer
      ICIAM2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 極子型基本解近似解法における悪条件性の緩和2023

    • Author(s)
      榊原航也
    • Organizer
      数学と現象 in 伊豆
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 有限集合間の最適輸送の Bregman ダイバージェンスによる正則化2023

    • Author(s)
      榊原航也
    • Organizer
      日本数学会2023年度秋季総合分科会
    • Related Report
      2023 Annual Research Report
  • [Presentation] クリスタラインH1曲率流2023

    • Author(s)
      榊原航也
    • Organizer
      第5回軽井沢グラフと解析研究集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Regularization of optimal transport problems by Bregman divergence2023

    • Author(s)
      Koya Sakakibara
    • Organizer
      Seminar on Partial Differential Equations
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Interface model of the self-propelled object motion with shape change2023

    • Author(s)
      Koya Sakakibara
    • Organizer
      RIMS Conference "Multidisciplinary Research on Nonlinear Phenomena: Modeling, Analysis and Applications"
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 最適輸送問題の Bregman ダイバージェンスによる正則化の誤差評価2023

    • Author(s)
      榊原航也
    • Organizer
      2023年度応用数学合同研究集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 周期構造上の紡錘形細胞集団におけるトポロジカル欠陥のダイナミクス2023

    • Author(s)
      宮廻裕樹
    • Organizer
      第61回日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
  • [Funded Workshop] One-Day International Workshop on Applied and Computational Complex Analysis2025

    • Related Report
      2024 Annual Research Report
  • [Funded Workshop] Applied Complex and Computational Analysis Meeting2024

    • Related Report
      2023 Annual Research Report

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Published: 2023-04-13   Modified: 2026-07-08  

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