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Study on operator valued free probability, random matrices and their applications

Research Project

Project/Area Number 15K04923
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Basic analysis
Research InstitutionAichi University of Education

Principal Investigator

Sakuma Noriyoshi  愛知教育大学, 教育学部, 准教授 (70610187)

Research Collaborator Yoshida Hiroaki  
Collins Benoit  
Hasebe Takahiro  
Suzuki Ryoichi  
Ueda Yuki  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords自由確率論 / 無限分解可能分布 / ランダム行列 / メキシコ / ポーランド / フランス / レヴィ過程 / デンマーク / 単峰性
Outline of Final Research Achievements

In this research we proved the followings:
(1) We proved that the normal distribution is freely selfdecomposable. It means that free convolution semigroup of normal distributions are unimodal. It has some corollaries. In its proof, we found a necessary and sufficient condition for freely selfdecomposable distributions.
(2) We introduce non-commutative point of view to outlier problem. Based on moment methods, we proved that asymptotic cyclic monotone independence appear in our RMM. For some explicit models, we compute concrete limiting distributions.

Academic Significance and Societal Importance of the Research Achievements

ランダム行列理論は統計学, 通信, 量子情報理論, 機械学習理論に応用がある. 自由確率論は計算が困難な巨大なランダム行列のスペクトル分布を見積もる手法であり, その深化は応用上極めて重要である. 本研究課題でも一例であげると, 統計学上重要なアウトライヤーの問題を扱っているこれはデータ解析に関連する話題であり, 我々の結果は具体的なモデルに対してアウトライヤーの位置を理論的に求める手法であり, それを統計学に応用すれば新しい検定手法などを構築でき, データ解析に応用できる可能性を秘めていると思われる.

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (35 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (6 results) Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 4 results) Presentation (21 results) (of which Int'l Joint Research: 8 results,  Invited: 8 results) Funded Workshop (2 results)

  • [Int'l Joint Research] CIMAT(メキシコ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Wroclaw University(ポーランド)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] CIMAT(メキシコ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] オーフス大学(デンマーク)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] CIMAT(メキシコ)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ブロツワフ大学(ポーランド)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Free probability for purely discrete eigenvalues of random matrices2018

    • Author(s)
      COLLINS Benoit、HASEBE Takahiro、SAKUMA Noriyoshi
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 70 Issue: 3 Pages: 1111-1150

    • DOI

      10.2969/jmsj/77147714

    • NAID

      130007420328

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fluctuations of Marchenko-Pastur limit of random matrices with dependent entries2017

    • Author(s)
      Hasegawa Ayako、Sakuma Noriyoshi、Yoshida Hiroaki
    • Journal Title

      Statist. Probab. Lett.

      Volume: 127 Pages: 85-96

    • DOI

      10.1016/j.spl.2017.03.022

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fluctuations of Marchenko-Pastur limit of random matrices with dependent entries2017

    • Author(s)
      Ayako Hasegawa, Noriyoshi Sakuma, Hiroaki Yoshida
    • Journal Title

      Statistics and probability letters

      Volume: 未定

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Unimodality for free Levy processes2017

    • Author(s)
      T. Hasebe, N. Sakuma
    • Journal Title

      Ann. Inst. Henri Poincare Probab. Stat.

      Volume: 53

    • NAID

      120006313449

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Unimodality for free Levy processes2016

    • Author(s)
      Takahiro Hasebe, Noriyoshi Sakuma
    • Journal Title

      Annales de l'Institut Henri Poincare (B) Probabilites et Statistiques

      Volume: 未定

    • NAID

      120006313449

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A formula for the R-transform and S-transform operator valued free probability2016

    • Author(s)
      Noriyoshi Sakuma
    • Journal Title

      無限分解可能過程に関連する諸問題(20)

      Volume: 20 Pages: 1-3

    • Related Report
      2015 Research-status Report
    • Acknowledgement Compliant
  • [Presentation] The normal distribution is freely selfdecomposable2019

    • Author(s)
      Noriyoshi Sakuma
    • Organizer
      Okayama Workshop on Stochastic Analysis 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 自由確率論から考えるランダム行列のoutlierの挙動2019

    • Author(s)
      佐久間紀佳
    • Organizer
      慶應確率論ワークショップ
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] A modified logarithmic Sobolev inequality for canonical Levy processes and its applications2018

    • Author(s)
      佐久間紀佳, 鈴木良一
    • Organizer
      日本数学会2018年度秋季総合分科会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 自由確率論から考えるランダム行列のoutlierの挙動2018

    • Author(s)
      佐久間紀佳
    • Organizer
      福岡大学確率論セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 自由確率論から考えるランダム行列のoutlierの挙動2018

    • Author(s)
      佐久間紀佳
    • Organizer
      大阪大学確率論セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 正規分布の自由自己分解可能性2018

    • Author(s)
      長谷部高広, Steen . Thorbjornsen, 佐久間紀佳
    • Organizer
      日本数学会2018年度年会
    • Related Report
      2017 Research-status Report
  • [Presentation] On freely selfdecomposable distributions2017

    • Author(s)
      Noriyoshi Sakuma
    • Organizer
      SIMA 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On the support of free convolution semigroups2017

    • Author(s)
      Noriyoshi Sakuma
    • Organizer
      Research seminar in Analysis in Quantum Information Theory
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The normal distribution is freely selfdecomposable2017

    • Author(s)
      Noriyoshi Sakuma
    • Organizer
      PRIMA 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Selfdecomposable distributions in classical and free probability2017

    • Author(s)
      Noriyoshi Sakuma
    • Organizer
      Workshop on interactions between commutative and noncommutative probability
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 自由独立性, 自由フォック空間,semicircular elements など-基礎-2016

    • Author(s)
      佐久間紀佳
    • Organizer
      第1回「Free Monotone Transport」を読む会
    • Place of Presentation
      成田ビューホテル(千葉県・成田市)
    • Year and Date
      2016-03-07
    • Related Report
      2015 Research-status Report
  • [Presentation] “自由独立性, 自由フォック空間,semicircular elements など-そして伝説へ2016

    • Author(s)
      佐久間紀佳
    • Organizer
      第1回「Free Monotone Transport」を読む会
    • Place of Presentation
      成田ビューホテル(千葉県・成田市)
    • Year and Date
      2016-03-07
    • Related Report
      2015 Research-status Report
  • [Presentation] ランダム行列模型によるSchwinger-Dyson方程式の解の構成の証明について2016

    • Author(s)
      佐久間紀佳
    • Organizer
      第2回Free Monotone Transportを読む会
    • Place of Presentation
      信州大学(長野県・長野市)
    • Related Report
      2016 Research-status Report
  • [Presentation] ランダム行列模型によるSchwinger-Dyson方程式の解の構成について2016

    • Author(s)
      佐久間紀佳
    • Organizer
      第2回Free Monotone Transportを読む会
    • Place of Presentation
      信州大学(長野県・長野市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Free probability for purely discrete eigenvalues of random matrices2016

    • Author(s)
      佐久間紀佳
    • Organizer
      Analytic versus Combinatorial in Free Probability
    • Place of Presentation
      バンフ(カナダ)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Unimodality and selfdecomposability in clasiccal and free probability.2016

    • Author(s)
      佐久間紀佳
    • Organizer
      17th WORKSHOP: NON-COMMUTATIVE PROBABILITY Levy processes and operator algebras, with applications
    • Place of Presentation
      ベンドレヴォ(ポーランド)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 具体的なSchwinger-Dyson 方程式の解の構成について2016

    • Author(s)
      佐久間紀佳
    • Organizer
      鹿児島解析・確率論セミナー
    • Place of Presentation
      鹿児島大学(鹿児島県・鹿児島市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 自由ブラウン運動と確率微分方程式2016

    • Author(s)
      佐久間紀佳
    • Organizer
      鹿児島解析・確率論セミナー
    • Place of Presentation
      鹿児島大学(鹿児島県・鹿児島市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 自由レヴィ過程の分布の単峰性について2015

    • Author(s)
      佐久間紀佳
    • Organizer
      確率論シンポジウム
    • Place of Presentation
      岡山大学(岡山県・岡山市)
    • Year and Date
      2015-12-16
    • Related Report
      2015 Research-status Report
  • [Presentation] 自由無限分解可能分布の単峰性について2015

    • Author(s)
      佐久間紀佳
    • Organizer
      無限分解可能可能過程に関する諸問題
    • Place of Presentation
      統計数理研究所(東京都・立川市)
    • Year and Date
      2015-12-03
    • Related Report
      2015 Research-status Report
  • [Presentation] On spectral distributions and fluctuations of Marchenko-Pastur limit of random matrices with dependent entries2015

    • Author(s)
      Noriyoshi Sakuma
    • Organizer
      AARHUS CONFERENCE ON PROBABILITY, STATISTICS AND THEIR APPLICATIONS
    • Place of Presentation
      オーフス (デンマーク)
    • Year and Date
      2015-06-15
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Funded Workshop] Meeting on free probability, random matrices and related topics 12019

    • Related Report
      2018 Annual Research Report
  • [Funded Workshop] Workshop on interactions between commutative and noncommutative probability2017

    • Related Report
      2017 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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