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2012 Fiscal Year Annual Research Report

レヴィ過程及び無限分解可能分布に関連する諸問題の総合的研究

Research Project

Project/Area Number 22340021
Research InstitutionKeio University

Principal Investigator

前島 信  慶應義塾大学, 理工学部, 名誉教授 (90051846)

Co-Investigator(Kenkyū-buntansha) 仲田 均  慶應義塾大学, 理工学部, 教授 (40118980)
田村 要造  慶應義塾大学, 理工学部, 教授 (50171905)
安田 公美  慶應義塾大学, 商学部, 教授 (40284484)
鈴木 由紀  慶應義塾大学, 医学部, 講師 (30286645)
佐々田 槙子  慶應義塾大学, 理工学部, 助教 (00609042)
Project Period (FY) 2010-04-01 – 2013-03-31
Keywordsレヴィ過程 / 無限分解可能分布 / 安定分布 / ガンマ分布 / ローゼンブラット過程 / 国際研究者交流 / 米国、トルコ、ドイツ
Research Abstract

1.狭義安定分布のレヴィ過程に関する確率積分による特徴づけは、昨年度証明が完成したことを報告したが、その後定理をより完全なものにすることが出来た。(上田陽平、Risinskiの協力による。)完全自己分解可能分布については、対称完全自己分解可能分布については、加法過程に関する確率積分による特徴づけの可能性がわかり、その証明の完成に向けて1年間努力したが、かなり難しい問題であることがわかり24年度中には完成に至らなかった。
2.(0,∞)上の分布がGGC(Generalized Gamma Convolution)であるとはガンマ分布の有限個の畳み込みの弱収束極限であることをいう。ガンマ確率変数に負の係数を掛けたものを許したクラスをEGGC(Extended Generalized Gamma Convolution)と呼ぶ。近年、確率論のいろいろな問題の中でこの分布が出現することがわかってきた。Rosenblatt分布は強い従属性を持つ定常列の和の極限として、正規分布以外の初めての例として示された(Rosenbatt(1961))。Veillette-Taqqu(2012)は、Rosenblatt分布が無限分解可能であることを示し、レヴィ測度を陽に求め、自己分解可能であることを主張したが、実際はEGGCにもなっていることを前島が指摘した。そこで、周辺分布がRosenblatt分布である自己相似定常増分過程であるRosenblatt過程の有限次元分布がどうなるかを調べ、EGGCを多次元に拡張したThorinクラスに入っていることを、Tudorの協力を得て証明した。
3.前島は、米国ノースカロライナ州の自己相似過程に関する国際シンポジウム、イスタンブールで開催された国際会議、ドイツのBraunschweig工科大学に出張して、研究成果の発表と新しい共同研究のための議論をしてきた。

Current Status of Research Progress
Reason

24年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

24年度が最終年度であるため、記入しない。

  • Research Products

    (22 results)

All 2013 2012

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (9 results) (of which Invited: 4 results)

  • [Journal Article] Examples of alpha-selfdecomposable distributions2013

    • Author(s)
      Makoto Maejima
    • Journal Title

      Statistics and Probability Letters

      Volume: 83 Pages: 286,291

    • DOI

      10.1016/j.spl.2012.09.022

    • Peer Reviewed
  • [Journal Article] On the distribution of the Rosenblatt process2013

    • Author(s)
      Makoto Maejima
    • Journal Title

      Statistics and Probability Letters

      Volume: 83 Pages: 1490,1495

    • DOI

      10.1016/j.spl.2013.02.019

    • Peer Reviewed
  • [Journal Article] The dichotomy of recurrence and transience of semi-Levy processes2013

    • Author(s)
      Makoto Maejima
    • Journal Title

      Journal of Theoretical Probability

      Volume: not yet decided Pages: not yet decided

    • DOI

      DOI 10.1007/s10959-012-0452-1

    • Peer Reviewed
  • [Journal Article] Levy measures involving a generalized form of fractional integrals2013

    • Author(s)
      Makoto Maejima
    • Journal Title

      Probabilty and Mathematical Statistics

      Volume: not yet decided Pages: not yet decided

    • Peer Reviewed
  • [Journal Article] A refined Kurzweil type theorem in positive characteristic2013

    • Author(s)
      Dong Han Kim
    • Journal Title

      Finite Fields and their Applications

      Volume: 20 Pages: 64,75

    • DOI

      10.1016/j.ffa2012.12.002

    • Peer Reviewed
  • [Journal Article] Markov processes on the adeles and Chebyshev function2013

    • Author(s)
      Kumi Yasuda
    • Journal Title

      Statistics and Probability Letters

      Volume: 83 Pages: 238,244

    • DOI

      10.1016/j.spl.2012.09.008

    • Peer Reviewed
  • [Journal Article] On the spectral gap of the Kac walk and other binary collision processes on d-dimensional lattice2013

    • Author(s)
      Makiko Sasada
    • Journal Title

      Symmetries, Integrable Systems and Representations ; Springer Proceedings in Mathematics & Statistics

      Volume: 40 Pages: 543,560

    • DOI

      10.1007/978-1-4471-4863-0_23

    • Peer Reviewed
  • [Journal Article] Fluctuations in an evolutional model of two-dimensional Young diagrams2013

    • Author(s)
      Tadahisa Funaki
    • Journal Title

      Stochastic Processes and their Applications

      Volume: 123 Pages: 1229,1275

    • DOI

      10.1016/j.spa.2012.12.005

    • Peer Reviewed
  • [Journal Article] Macroscopic energy diffusion for a chain of anharmonic oscillators2013

    • Author(s)
      Stefano Olla
    • Journal Title

      Probability Theory and Related Fields

      Volume: not yet decided Pages: not yet decided

    • DOI

      10.1007/s00440-012-0469-5

    • Peer Reviewed
  • [Journal Article] Distributions of exponential integrals of independent increment processes related to generalized gamma convolutions2012

    • Author(s)
      Anita Behme
    • Journal Title

      Bernoulli

      Volume: 18 Pages: 1172,1187

    • DOI

      10.3150/11-BEJ382

    • Peer Reviewed
  • [Journal Article] alpha-selfdecomposable distributions, mild Ornstein-Uhlenbeck type processes and quasi-selfsimilar additive processes2012

    • Author(s)
      Makoto Maejima
    • Journal Title

      Seminaires et Congres

      Volume: 28 Pages: 45,64

    • Peer Reviewed
  • [Journal Article] Selfsimilar processes with stationary increments in the second Wiener chaos2012

    • Author(s)
      Makoto Maejima
    • Journal Title

      Probabilty and Mathematical Statistics

      Volume: 32 Pages: 167,186

    • Peer Reviewed
  • [Journal Article] A class of multivariate infinitely divisible distributions related to arcsine density2012

    • Author(s)
      Makoto Maejima
    • Journal Title

      Bernoulli

      Volume: 18 Pages: 476,495

    • DOI

      10.3150/10-BEJ348

    • Peer Reviewed
  • [Presentation] A diffusion process with Brownian potential including a zero potential part2013

    • Author(s)
      鈴木由紀
    • Organizer
      日本数学会2013年度年会
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      20130320-20130320
  • [Presentation] On hurwitz continued fractions and an idea by Ford2012

    • Author(s)
      Hitoshi Nakada
    • Organizer
      Ergodic Theory and Metric Theory
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      20121205-20121205
  • [Presentation] Mixing rates of stochastic energy exchange models with degenerate rate functions2012

    • Author(s)
      Makiko Sasada
    • Organizer
      Nonequilibrium Statistical Mechanics: Mathematical Understanding and Numerical Simulation
    • Place of Presentation
      Banf, Canada
    • Year and Date
      20121114-20121114
    • Invited
  • [Presentation] Stochastic energy exchange models with degenerate rate functions2012

    • Author(s)
      Makiko Sasada
    • Organizer
      International Congress on Mathematical Physics ICMP2012
    • Place of Presentation
      Aalborg, Denmark
    • Year and Date
      20120809-20120809
    • Invited
  • [Presentation] Classes of alpha-selfdecomposable distributions and their examples2012

    • Author(s)
      Makoto Maejima
    • Organizer
      8th World Congress in Probability and Statistics
    • Place of Presentation
      Instanbul, Turkey
    • Year and Date
      20120711-20120711
  • [Presentation] Spectral gap for stochastic energy exchange models with degenerate rate functions2012

    • Author(s)
      Makiko Sasada
    • Organizer
      11th workshop on Stochastic Analysis on Large Scale Interacting Systems
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      20120705-20120705
    • Invited
  • [Presentation] Selfsimilar processes with stationary increments in the second Wiener chaos2012

    • Author(s)
      Makoto Maejima
    • Organizer
      International Conference on Long-Range Dependence, Self-similarity and Heavy Tails
    • Place of Presentation
      North Calonina, USA
    • Year and Date
      20120420-20120420
    • Invited
  • [Presentation] Microscopic dynamics for the porous medium equation and other degenerate parabolic equations2012

    • Author(s)
      M. Sasada
    • Organizer
      MSJ-KMS Joint Meeting 2012
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2012-09-17
  • [Presentation] On the dual of Rauzy induction2012

    • Author(s)
      H. Nakada
    • Organizer
      Workshop on Infinite Ergodic Theory
    • Place of Presentation
      Guildford, UK
    • Year and Date
      2012-07-30

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Published: 2014-07-24  

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