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2021 Fiscal Year Annual Research Report

Anomalous diffusions on disordered media

Research Project

Project/Area Number 17H01093
Research InstitutionWaseda University

Principal Investigator

熊谷 隆  早稲田大学, 理工学術院, 教授 (90234509)

Co-Investigator(Kenkyū-buntansha) 相川 弘明  中部大学, 工学部, 教授 (20137889)
Croydon David  京都大学, 数理解析研究所, 准教授 (50824182)
舟木 直久  早稲田大学, 理工学術院, 特任教授 (60112174)
福島 竜輝  筑波大学, 数理物質系, 准教授 (60527886)
木上 淳  京都大学, 情報学研究科, 教授 (90202035)
Project Period (FY) 2017-04-01 – 2022-03-31
Keywords確率論 / 複雑系 / 数理物理 / 解析学 / ポテンシャル論 / 統計力学
Outline of Annual Research Achievements

1。熊谷は、X. Chen氏、Z.-Q. Chen氏、Wang氏とともに、ランダムな媒質で長距離相関があるモデルについて、相関が安定過程のランダムな摂動になる場合にスケール極限の安定過程への収束のスピードの評価(quantitative homogenization)を行った。ランダムな長距離相関がある場合の収束のスピードの評価は、近接相関の場合とは異なる手法が必要となるが、マルチスケールポアンカレ不等式などを用いて一定の評価を得る見込みが立った。当該研究を今後も継続して行う予定である。
2。木上は、空間の分割と重みの理論の応用として、フラクタルを含む距離空間の上に、空間を近似するグラフ上の離散的なDirichlet形式のスケーリング極限としてlocal regular Dirichlet 形式が得られるための必要十分条件を得た。
3。相川は、双曲多様体を典型的な例とする負曲率多様体に「容量的幅」を拡張した。多様体上の任意の領域の最小固有値やねじり関数、生存確率を容量的幅によって評価し、最小固有関数とGreen関数の比較、Intrinsic UltracontractivityやCranston-McConnell不等式に応用した。
4。舟木は、相互作用粒子系から平均曲率流の導出を行った。また、ランダム媒質中の偏微分方程式の漸近挙動を特異な確率偏微分方程式の手法を使って調べた。
5。福島は、Stefan Junk氏と共同で向きづけられた高分子模型自由エネルギーの零温度極限がパーコレーションの路の数の増大の速さと一致することを示した。応用として後者のパラメータに関する連続性もわかった。
6。Croydonは、Adam Bowditch氏(University College Dublin)と共同で、ballistic regimeでの臨界確率パーコレーションの上のバイアスのかかったランダムウォークの2次orderのスケール指数を導出した。また、白石大典氏(京都大学)とともに4次元ランダムウォークの軌跡上のランダムウォークのスケール極限を導出した。

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

  • Research Products

    (34 results)

All 2022 2021 Other

All Int'l Joint Research (5 results) Journal Article (14 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 14 results,  Open Access: 3 results) Presentation (13 results) (of which Int'l Joint Research: 8 results,  Invited: 13 results) Remarks (1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of British Columbia(カナダ)

    • Country Name
      CANADA
    • Counterpart Institution
      University of British Columbia
  • [Int'l Joint Research] UCLA/University of Washington/University of Arizona(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      UCLA/University of Washington/University of Arizona
  • [Int'l Joint Research] Eindhoven University of Technology(オランダ)

    • Country Name
      NETHERLANDS
    • Counterpart Institution
      Eindhoven University of Technology
  • [Int'l Joint Research] Fujian Normal University/Shianghai Jiao Tong University(中国)

    • Country Name
      CHINA
    • Counterpart Institution
      Fujian Normal University/Shianghai Jiao Tong University
  • [Int'l Joint Research] Seoul National University(韓国)

    • Country Name
      KOREA (REP. OF KOREA)
    • Counterpart Institution
      Seoul National University
  • [Journal Article] Periodic homogenization of nonsymmetric Levy-type processes2021

    • Author(s)
      Chen Xin、Chen Zhen-Qing、Kumagai Takashi、Wang Jian
    • Journal Title

      The Annals of Probability

      Volume: 49 Pages: 2874-2921

    • DOI

      10.1214/21-AOP1518

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quenched and averaged tails of the heat kernel of the two-dimensional uniform spanning tree2021

    • Author(s)
      Barlow M. T.、Croydon D. A.、Kumagai T.
    • Journal Title

      Probability Theory and Related Fields

      Volume: 181 Pages: 57~111

    • DOI

      10.1007/s00440-021-01078-w

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Heat kernel upper bounds for symmetric Markov semigroups2021

    • Author(s)
      Chen Zhen-Qing、Kim Panki、Kumagai Takashi、Wang Jian
    • Journal Title

      Journal of Functional Analysis

      Volume: 281 Pages: 109074~109074

    • DOI

      10.1016/j.jfa.2021.109074

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quenched invariance principle for a class of random conductance models with long-range jumps2021

    • Author(s)
      Biskup Marek、Chen Xin、Kumagai Takashi、Wang Jian
    • Journal Title

      Probability Theory and Related Fields

      Volume: 180 Pages: 847~889

    • DOI

      10.1007/s00440-021-01059-z

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Glauber dynamics for Ising models on randomregular graphs: cut-off and metastability2021

    • Author(s)
      Can Van Hao、van der Hofstad Remco、Kumagai Takashi
    • Journal Title

      Latin American Journal of Probability and Mathematical Statistics

      Volume: 18 Pages: 1441~1441

    • DOI

      10.30757/ALEA.v18-52

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Homogenization of Symmetric Stable-like Processes in Stationary Ergodic Media2021

    • Author(s)
      Chen Xin、Chen Zhen-Qing、Kumagai Takashi、Wang Jian
    • Journal Title

      SIAM Journal on Mathematical Analysis

      Volume: 53 Pages: 2957~3001

    • DOI

      10.1137/20M1326726

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quenched invariance principle for long range random walks in balanced random environments2021

    • Author(s)
      Chen Xin、Chen Zhen-Qing、Kumagai Takashi、Wang Jian
    • Journal Title

      Annales de l'Institut Henri Poincare, Probabilites et Statistiques

      Volume: 57 Pages: 2243-2267

    • DOI

      10.1214/21-AIHP1150

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stability of heat kernel estimates for symmetric non-local Dirichlet forms2021

    • Author(s)
      Chen Zhen-Qing、Kumagai Takashi、Wang Jian
    • Journal Title

      Memoirs of the American Mathematical Society

      Volume: 271 Pages: v+89 pp.

    • DOI

      10.1090/memo/1330

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Random conductance models with stable-like jumps: Quenched invariance principle2021

    • Author(s)
      Chen Xin、Kumagai Takashi、Wang Jian
    • Journal Title

      The Annals of Applied Probability

      Volume: 31 Pages: 1180-1231

    • DOI

      10.1214/20-AAP1616

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Intrinsic Ultracontractivity for Domains in Negatively Curved Manifolds2021

    • Author(s)
      Aikawa Hiroaki、van den Berg Michiel、Masamune Jun
    • Journal Title

      Computational Methods and Function Theory

      Volume: 21 Pages: 797~824

    • DOI

      10.1007/s40315-021-00402-8

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Stochastic Eight-Vertex Model, its Invariant Measures and KPZ Limit2021

    • Author(s)
      Funaki Tadahisa、Nishijima Yuto、Suda Hayate
    • Journal Title

      Journal of Statistical Physics

      Volume: 184 Pages: 1-30

    • DOI

      10.1007/s10955-021-02789-z

    • Peer Reviewed
  • [Journal Article] Large deviation for dynamic model of three dimensional Young diagrams2021

    • Author(s)
      Funaki Tadahisa
    • Journal Title

      Adv. Stud. Pure Math.

      Volume: 87 Pages: 227-238

    • DOI

      10.2969/aspm/08710227

    • Peer Reviewed
  • [Journal Article] On large deviation rate functions for a continuous-time directed polymer in weak disorder2021

    • Author(s)
      Fukushima Ryoki、Junk Stefan
    • Journal Title

      Electronic Communications in Probability

      Volume: 26 Pages: 1-10

    • DOI

      10.1214/21-ECP378

    • Peer Reviewed / Open Access
  • [Journal Article] Scaling limits of the three-dimensional uniform spanning tree and associated random walk2021

    • Author(s)
      Angel O.、Croydon D. A.、Hernandez-Torres S.、Shiraishi D.
    • Journal Title

      The Annals of Probability

      Volume: 49 Pages: 3032-3105

    • DOI

      10.1214/21-AOP1523

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Spectral dimension of simple random walk on a long-range percolation cluster2022

    • Author(s)
      Kumagai Takashi
    • Organizer
      Joint Online Workshop between Netherlands and Japan
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous diffusions and time fractional differential equations2022

    • Author(s)
      Kumagai Takashi
    • Organizer
      Deterministic and stochastic fractional differential equations and jump processes, Workshop at Isaac Newton Institute
    • Int'l Joint Research / Invited
  • [Presentation] Motion by mean curvature from interacting particle systems2022

    • Author(s)
      Funaki Tadahisa
    • Organizer
      The seminar on Stochastic Processes (SSP) 2022, Lehigh University
    • Int'l Joint Research / Invited
  • [Presentation] Motion by mean curvature from interacting particle systems2022

    • Author(s)
      Funaki Tadahisa
    • Organizer
      Fractional kinetics, hydrodynamic limits and fractals
    • Int'l Joint Research / Invited
  • [Presentation] Zero temperature limits of directed polymers in random environment2022

    • Author(s)
      Fukushima Ryoki
    • Organizer
      Workshop on Probabilistic Methods in Statistical Mechanics of Random Media and Random Fields
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous scaling regimes for one-dimensional random walks2022

    • Author(s)
      Croydon David
    • Organizer
      Fractional Kinetics, Hydrodynamic Limits and Fractals
    • Int'l Joint Research / Invited
  • [Presentation] Periodic homogenization of non-symmetric Levy-type processes2021

    • Author(s)
      Kumagai Takashi
    • Organizer
      Joint Israeli Probability Seminar
    • Invited
  • [Presentation] Quenched and averaged tails of the heat kernel of the two-dimensional uniform spanning tree2021

    • Author(s)
      Kumagai Takashi
    • Organizer
      16th Workshop on Markov Processes and Related Topics
    • Int'l Joint Research / Invited
  • [Presentation] Intrinsic Ultracontractivity for domains in negatively curved manifolds2021

    • Author(s)
      Aikawa Hiroaki
    • Organizer
      Workshop on potential theory and complex analysis - In memory of Professor Hiroaki Masaoka
    • Invited
  • [Presentation] 複雑領域に対する境界値問題2021

    • Author(s)
      相川弘明
    • Organizer
      微分方程式の総合的研究
    • Invited
  • [Presentation] Schauder estimate for quasilinear discrete PDEs of parabolic type2021

    • Author(s)
      舟木直久
    • Organizer
      早稲田大学応用解析研究会
    • Invited
  • [Presentation] Number of paths in oriented percolation as zero temperature limit of directed polymer2021

    • Author(s)
      Fukushima Ryoki
    • Organizer
      The 10th International Conference on Stochastic Analysis and its Applications
    • Int'l Joint Research / Invited
  • [Presentation] Central limit theorem for the spectrum of a random fractal string2021

    • Author(s)
      Croydon David
    • Organizer
      University of Bristol, Analysis and Geometry Seminar
    • Invited
  • [Remarks] Takashi Kumagai's home page

    • URL

      http://www.f.waseda.jp/t-kumagai/index.html

  • [Funded Workshop] The 10th International Conference on Stochastic Analysis and its Applications2021

URL: 

Published: 2023-12-25  

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