OSHIMA Yoichi 大島洋一

Researcher Number	20040404
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Affiliation (based on the past Project Information) *help	2007: Kumamoto University, Graduate School of Natural Sciences, Professor 2006 – 2007: 熊本大学, 自然科学研究科, 教授 2006: 熊本大学, 大学院自然科学研究科, 教授 1995 – 2005: 熊本大学, 工学部, 教授 1989 – 1993: 熊本大学, 工学部, 教授 1986: Faculty of Engineering, Kumamoto University, 工学部, 教授
Review Section/Research Field	Principal Investigator General mathematics (including Probability theory/Statistical mathematics) / General mathematics (including Probability theory/Statistical mathematics) Except Principal Investigator General mathematics (including Probability theory/Statistical mathematics) / Basic analysis / General mathematics (including Probability theory/Statistical mathematics) / Basic analysis / Statistical science / 解析学
Keywords	Principal Investigator Dirichlet forms / ディリクレー形式 / ディリクレ形式 / 再帰性 / 時空拡散過程 / Recurrence / エルゴード定理 / 反射壁マルコフ過程 / 保存性 / 時空マルコフ過程 … More / Simulated annealing / Hitting probability / Space-time domain / Time inhomogeneous diffusion processes / ポアンカレ型不等式 / 過渡性 / 焼き鈍し / 到達確率 / 時空領域 / 時間的に一様でない拡散過程 / Optimal stopping problem / Skorohod representation / Local time / Reflecting processes / Space-time diffusion processes / 最適停止 / 反射壁拡散過程 / 時間依存ディリクレ形式 / 最適停止問題 / Skorohod表現 / 局所時間 / 反射壁過程 / recurrence / Markov chains / Ergodic theorem / マルコフ連鎖 / Ergodic theory / conservativeness / Space-time process / Schrodinger processes / space-time processes / Parabolic potentials / Hunt process / Diriソhlet spaces / Parabolic Potential / シュレ-ジンガ-過程 / ディリクレ-形式 / シュレージンガー過程 / 時空過程 / 放物型ポテンシャル / Mosco metric / Conservativeness / Dirichlet form … More Except Principal Investigator Diophantine approximation / ディオファンタス近似 / フラクタル次元 / self-similarity / fractal dimension / 準周期性 / attractor / chaos / KAM theorem / quasi periodicity / nonlinear PDE / ディオファンタス条件 / 再帰性 / カオス / 自己相似性 / 非線形偏微分方程式 / ブラウン運動 / excursion / KAM定理 / アトラクタ / 準周期的軌道 / LINEX loss function / LINEX損失関数 / ディリクレ形式 / 対称マルコフ過程 / 偏微分方程式 / almost periodicity / nonlinear evolution equation / innovation / 標準表現 / ガウス過程 / Bruwnian motoon / canonical representation / Gaussian processes / ホワイトノイズ / イノベイション / Flux-free / Macroscopic model / Traffic flow / Stability / Simulation / Stochastic difference equation / Randomness / フラックスフリー / マクロモデル / 交通流 / 安定性 / 流体シミュレーション / 確率差分方程式 / ランダム項 / stopping game / Poisson point process / scale function / Feller measures / time changed process / Dirichlet form / symmetric Markov process / 確率停止ゲーム理論 / スペクトル総合 / 対称安定過程 / 定量解析 / ダグラス積分 / 確率停止ゲーム / ポアッソン点過程 / スケール関数 / フェラー測度 / 時間変更過程 / Normal distribution / Second-order asymptotic efficiency / Multi-stage estimation procedure / Sequential estimation / 二段階推定法 / 正規分布 / 2次の漸近有効性 / 多段階推定法 / 逐次推定 / inadmissibility / asymptotic efficiency / Bayes sequential estimation / 非許容性 / 漸近有効性 / ベイズ逐次推定 / additive functional / Diricblet form / large deviation / Symmetric Markov processes / ディリクン形式 / 加法的汎関数 / 大偏差原理 / tiling / correlation dimension / quasi-periodicity / 相姦次元 / 準同期性 / 概同期性 / 自己相似 / タイリング / 相関次元 / 概周期性 / Fractal dimension / アトラクター / 概周期 / 非線形発展方程式 / stochastic equation. / stochastic integral / filtering / Canonical representation / Brownian motion / Gaussian process / 多重マルコフ過程 / マルチンゲ-ル / 再生核ヒルベルト空間 / 新生過程 / 確率微分方程式 / 確率積分 / 新生温程 / フィルタリング / Donsker's delta function / 汎関数空間上の積分 / 正値超汎関数の特徴付け / Hida Distribution / 核型空間上のガウス測度 / ホワイトノイズ解析 Less

Development of Reliability Evaluation System for Numerical Solutions by Introducing Stochastic Approach and Application to Complicated Fluid Dynamics Simulation
- Principal Investigator
  
  HATAUE Itaru
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kanazawa University
Research on diffusion processes moving singularly on space-time domainsPrincipal Investigator
- Principal Investigator
  
  OSHIMA Yoichi
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
Analysis on the fractal structure of complexity solutions for nonlinear differential equations
- Principal Investigator
  
  NAITO Koichiro
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Kumamoto University
Analysis on the fractal structure of quasi periodic orbits for nonlinear evolution equations
- Principal Investigator
  
  NAITO Koichiro
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  KUMAMOTO UNIVERSITY
Theoretical Research of Statistical Inference by Multi-Stage Procedures
- Principal Investigator
  
  TAKADA Y.
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Statistical science
- Research Institution
  Kumamoto University
Quantitative analysis of reversible Markov processes and the theory of stochastic stopping game
- Principal Investigator
  
  FUKUSHIMA Masatoshi
- Project Period (FY)
  2003 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kansai University
Analysis on the structure of quasi periodic attractors for nonlinear partial differential equations
- Principal Investigator
  
  NAITO Koichiro
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  KUMAMOTO UNIVERSITY
ON THE DIFFUSION PROCESSES ON MOVING DOMAINSPrincipal Investigator
- Principal Investigator
  
  OSHIMA Yoichi
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
Symmetric Markov processes and large deviation theory
- Principal Investigator
  
  TAKEDA Masayoshi
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Tohoku University
Theory of Bayes interence and its applications
- Principal Investigator
  
  TAKADA Yoshikazu
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
Certain limit theorem and its applications of time inhomogeneous Markov processesPrincipal Investigator
- Principal Investigator
  
  OSHIMA Yoichi
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  KUMAMOTO UNIVERSITY
Analysis of dimensional and recursive properties for almost periodic solutions of nonlinear partial differential equations
- Principal Investigator
  
  NAITO Koichiro
- Project Period (FY)
  1998 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  KUMAMOTO UNIVERSITY
Analysis of almost periodic attractors for nonlinear evolution equations
- Principal Investigator
  
  NAITO Koichiro
- Project Period (FY)
  1996 – 1997
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  KUMAMOTO UNIVERSITY
On the recurrence and its applications of time inhomogeneous Markov processesPrincipal Investigator
- Principal Investigator
  
  OSHIMA Yoichi
- Project Period (FY)
  1996 – 1997
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  KUMAMOTO UNIVERSITY
時間的に一様でない反射壁拡散過程の研究Principal Investigator
- Principal Investigator
  
  大島洋一
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
特異な拡散過程に対応する距離の研究Principal Investigator
- Principal Investigator
  
  大島洋一
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
Parabolic potential theory and Markov processes; basic theory and its applicationsPrincipal Investigator
- Principal Investigator
  
  OSHIMA Yoichi
- Project Period (FY)
  1991 – 1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
ブラウン運動の超汎関数とFeynmanの経路積分および量子場の理論
- Principal Investigator
  
  YOKOI Yoshitaka
- Project Period (FY)
  1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
Separation and Fusion of Information in Stochastic Processes.
- Principal Investigator
  
  HITSUDA Masuyuki
- Project Period (FY)
  1989 – 1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kumamoto University
Representation of stochastic processes and the limit theorem.
- Principal Investigator
  
  HITSUDA Masuyuki
- Project Period (FY)
  1985 – 1986
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Faculty of Science, Kumamoto University

All 2008 2006 2004 Other

All Journal Article Presentation

[Journal Article] On an optimal stopping problem of time inhomogeneous diffusion processes2006
- Author(s)
  Y., Oshima
- Journal Title
  
  SIAM J. Cont. Optim. 45
  
  Pages: 565-579
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540187
[Journal Article] On an optimal stopping problem of time inhomogeneous diffusion processes2006
- Author(s)
  Yoichi Oshima
- Journal Title
  
  SIAM J. Control and Optimization (To appear in)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540164
[Journal Article] On an optimal stopping problem of time inhomogeneous diffusion processes2006
- Author(s)
  Yoichi Oshima
- Journal Title
  
  SIAM J.Control and Optim. 45・2
  
  Pages: 565-579
- Data Source
  KAKENHI-PROJECT-18540131
[Journal Article] On an optimal stopping problem of time inhomogeneous diffusion processes2006
- Author(s)
  Yoichi Oshima
- Journal Title
  
  SIAM J.Control and Optim. 45
  
  Pages: 565-579
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540131
[Journal Article] Second-order efficiency for two-stage estimation of a linear function of normal mean vectors when covariance matrices have some structures2006
- Author(s)
  M.Aoshima, Y.Takada
- Journal Title
  
  Sequential Analysis (to appear)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15500188
[Journal Article] On an optimal stopping problem of time inhomogeneous diffusion processes2006
- Author(s)
  Yoichi Oshima
- Journal Title
  
  SIAM J.Control and Optimization Vol.45, No.2
  
  Pages: 565-579
- Data Source
  KAKENHI-PROJECT-18540187
[Journal Article] On an optimal stopping problem of time inhomogeneous diffusion processes2006
- Author(s)
  Yoichi Oshima
- Journal Title
  
  To appear in SIAM J. Control and Optimization (To appear)
- Data Source
  KAKENHI-PROJECT-16540164
[Journal Article] Second-order efficiency for two-stage estimation of a linear function of normal mean vectors when covariance metrces have some structures2006
- Author(s)
  M.Aoshima, Y.Takada
- Journal Title
  
  Sequential Analysis (to appear)
- Data Source
  KAKENHI-PROJECT-15500188
[Journal Article] On an Optimal Stopping Problem of Time Inhomogeneous Diffusion Processes2006
- Author(s)
  Y. Oshima
- Journal Title
  
  SIAM J. Control OptimSIAM J. Control Optim.(electronic) Vol.45
  
  Pages: 565-579
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540118
[Journal Article] On an optimal stopping problem of time inhomogeneous diffusion processes2006
- Author(s)
  Yoichi, Oshima
- Journal Title
  
  SLAM J. Control and Optim Vol.45
  
  Pages: 565-579
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540131
[Journal Article] On an Optimal Stopping Problem of Time Inhomogeneous Diffusion Processes.2006
- Author(s)
  Y. Oshima
- Journal Title
  
  SIAM J. Control Optim. Vol.45
  
  Pages: 565-579
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540118
[Journal Article] On a construction of diffusion processes on moving domains2004
- Author(s)
  Y.Oshima
- Journal Title
  
  Potential Anal. 20
  
  Pages: 1-31
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540164
[Journal Article] Time-dependent Dirichlet forms and related stochastic calculus.2004
- Author(s)
  Yoichi Oshima
- Journal Title
  
  Infin.Dimens.Anal.Quantum Probab.Relat.Top. 7・2
  
  Pages: 281-316
- Data Source
  KAKENHI-PROJECT-16540164
[Journal Article] Time dependent Dirichlet forms and related stochastic calculus2004
- Author(s)
  Y.Oshima
- Journal Title
  
  Infinite Dimensional Analysis, Quantum Probability and Related Topics 7
  
  Pages: 281-316
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540142
[Journal Article] Time dependent Dirichlet forms and related stochastic calculus2004
- Author(s)
  Y.Oshima
- Journal Title
  
  Infinite dimensional analysis, quantum probability and related topics 7
  
  Pages: 281-316
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540142
[Journal Article] Asymptotic second-order efficiency for multivariate two-stage estimation of a linear function of normal mean vectors2004
- Author(s)
  M.Aoshima, Y.Takada
- Journal Title
  
  Sequential Analysis 23・3
  
  Pages: 333-353
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15500188
[Journal Article] On a construction of diffusion processes on moving domains2004
- Author(s)
  Yoichi Oshima
- Journal Title
  
  Potential Anal. 20・1
  
  Pages: 1-31
- Data Source
  KAKENHI-PROJECT-16540164
[Journal Article] Asymptotic second-order efficiency for multivariate two-stage estimation of a linear function of normal mean vectors2004
- Author(s)
  M.Aoshima, Y.Takada
- Journal Title
  
  Sequential Analysis 23-3
  
  Pages: 333-353
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15500188
[Journal Article] On an optimal stopping problem of time in homogeneous diffusion processes
- Author(s)
  Y.Oshima
- Journal Title
  
  SIAM J.Cont.Optim. (to appear)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540164
[Presentation] On the Reachability to Some Moving Domains of Time Inhomogeneous Diffusion Processes.2008
- Author(s)
  Y. Oshima
- Organizer
  ディリクレ形式とマルコフ過程に関する話題
- Place of Presentation
  熊本大学
- Year and Date
  2008-02-16
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540118
[Presentation] On the attainability to some moving domains of time inhomogeneous diffusion processes2008
- Author(s)
  大島洋一
- Organizer
  ディリクレ空間とマルコフ過程に関する話題
- Place of Presentation
  熊本大学
- Year and Date
  2008-02-16
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540131
[Presentation] On the attainability to some moving domains of Time inhomogeneous diffusion processes2008
- Author(s)
  Yoichi, Oshima
- Organizer
  Topics of Dirichlet forms and Markov processes
- Place of Presentation
  Kumamoto Univ.
- Year and Date
  2008-02-16
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540131
[Presentation] On the reachability to some moving domains of time inhomogeneous difusion processes2008
- Author(s)
  Yoichi Oshima
- Organizer
  ディリクレ形式とマルコフ過程に関する話題
- Place of Presentation
  熊本大学
- Year and Date
  2008-02-16
- Data Source
  KAKENHI-PROJECT-18540131
[Presentation] On the recurrence and transience of certain time inhomogeneous diffusion processes2006
- Author(s)
  大島洋一
- Organizer
  Workshop on analysis of jump type stochastic processes and applications
- Place of Presentation
  兵庫県立大学
- Year and Date
  2006-11-04
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540131
[Presentation] On the recurrence and transience sets of certain time inhomogeneous diffusion processes2006
- Author(s)
  Yoichi, Oshima
- Organizer
  Analysis of jump-type stochastic processes and applications
- Place of Presentation
  Hyougo Pref. Univ.
- Year and Date
  2006-11-04
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540131

1. NAITO Koichiro (10164104)

# of Collaborated Projects: 12 results

# of Collaborated Products: 0 results
2. SAISHO Yasumasa (70195973)

# of Collaborated Projects: 8 results

# of Collaborated Products: 0 results
3. HITSUDA Masuyuki (50024237)

# of Collaborated Projects: 8 results

# of Collaborated Products: 0 results
4. KADOTA Noriya (80185884)

# of Collaborated Projects: 7 results

# of Collaborated Products: 0 results
5. YOKOI Yoshitaka (50040481)

# of Collaborated Projects: 6 results

# of Collaborated Products: 0 results
6. TAIZO Sadahiro (00280454)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
7. TAKADA Yoshikazu (70114098)

# of Collaborated Projects: 3 results

# of Collaborated Products: 4 results
8. MISAWA Masashi (40242672)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
9. IWASA Manabu (30232648)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
10. KIM Dae hong (50336202)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
11. HYAKUTAKE Hiroto (70181120)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
12. YOKOYAMA Takahisa (20240864)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
13. OKA Yukimasa (50089140)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
14. YOSHIDA Kiyoshi (80033893)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
15. TAKEDA Masayoshi (30179650)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
16. NAMBU Takao (40156013)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. HISHIDA Toshiaki (60257243)

# of Collaborated Projects: 1 results

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18. SAKATA Toshio (20117352)

# of Collaborated Projects: 1 results

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19. TACHIZAWA Kazuya (80227090)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. TSUTSUMI Yoshiro (10180027)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. FUKUSHIMA Masatoshi (90015503)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
22. ICHIHARA Kanji (00112293)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
23. KUSUDA Masaharu (80195437)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
24. KURISU Tadashi (00029159)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
25. UEMURA Toshihiro (30285332)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
26. NII Shunsaku (50282421)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
27. HATAUE Itaru (50218476)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
28. ITO Shunji (30055321)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
29. OMORI Katsushi (20110231)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
30. KOHNO Mitsuhiko (30027370)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
31. 円藤章 (30032452)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
32. 渡辺アツミ (90040120)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
33. 山田光太郎 (10221657)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
34. 池辺信範 (40029632)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

OSHIMA Yoichi 大島 洋一

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Research on diffusion processes moving singularly on space-time domainsPrincipal Investigator

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ON THE DIFFUSION PROCESSES ON MOVING DOMAINSPrincipal Investigator

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Certain limit theorem and its applications of time inhomogeneous Markov processesPrincipal Investigator

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On the recurrence and its applications of time inhomogeneous Markov processesPrincipal Investigator

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時間的に一様でない反射壁拡散過程の研究Principal Investigator

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OSHIMA Yoichi 大島洋一