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2015 Fiscal Year Research-status Report

ジャンプ付確率過程のレゾルベントと満期ランダム化への応用

Research Project

Project/Area Number 26800092
Research InstitutionKansai University

Principal Investigator

山崎 和俊  関西大学, システム理工学部, 准教授 (50554937)

Project Period (FY) 2014-04-01 – 2017-03-31
Keywordsレヴィー過程 / レゾルベント / 数理ファイナンス
Outline of Annual Research Achievements

(1) 上側に屈折壁があり下側に反射壁があるレヴィー過程を研究した。下向きジャンプを持つレヴィー過程の場合を"On the Refracted-Reflected Spectrally Negative Levy Processes"にまとめ、上向きジャンプを持つレヴィー過程の場合について、"Refraction-Reflection Strategies in the Dual Model"にまとめた。それぞれ、レゾルベントを含む変動理論を尺度関数で表し、後者では最適配当問題への応用も行った。
(2) "Inventory Control for Spectrally Positive Levy Demand Processes"(Mathematics of Operations Researchに掲載予定)では、(s,S)-policyによって制御されるレヴィー過程のレゾルベントを求め、最適在庫問題を解いた。
(3) "Optimality of Refraction Strategies for Spectrally Negative Levy Processes" (SIAM Journal on Control and Optimization掲載予定)では、屈折過程を用いて、制御が絶対連続であるという条件下での、最適解を得た。
(4) "Spectrally Negative Levy Processes with Parisian Reflection Below and Classical Reflection Above"では、通常の反射とは違い、反射壁下に一定時間滞在したときに反射する過程を考え、その変動理論の研究を行った。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

"Inventory Control for Spectrally Positive Levy Demand Processes"がMathematics of Operations Researchに、"Optimality of Refraction Strategies for Spectrally Negative Levy Processes" がSIAM Journal on Control and Optimizationに掲載が決まった。また、"On the Refracted-Reflected Spectrally Negative Levy Processes"、"Refraction-Reflection Strategies in the Dual Model"、"Spectrally Negative Levy Processes with Parisian Reflection Below and Classical Reflection Above"の論文を平成27年度は執筆する事が出来た。

Strategy for Future Research Activity

平成27年度にもとめた、上側に屈折壁があり下側に反射壁があるレヴィー過程のレゾルベントを用い、満期ランダム化を行い、ファイナンス問題への応用を行う。また、反射壁下に一定時間滞在したときに反射する過程のレゾルベントを求め、保険数学および最適在庫問題への応用を行う。

Causes of Carryover

平成27年度からの繰り越し額(253,833円)があり、また年度をまたがった海外出張があったため。

Expenditure Plan for Carryover Budget

年度をまたがった海外出張の一部、及び国内・海外出張、図書費等に使用する。

  • Research Products

    (17 results)

All 2016 2015 Other

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 3 results) Presentation (12 results) (of which Int'l Joint Research: 8 results,  Invited: 7 results) Remarks (1 results) Funded Workshop (1 results)

  • [Journal Article] Inventory Control for Spectrally Positive Levy Demand Processes2016

    • Author(s)
      K. Yamazaki
    • Journal Title

      Mathematics of Operations Research

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Optimality of Refraction Strategies for Spectrally Negative Levy Processes2016

    • Author(s)
      D. Hernandez-Hernandez, J. L. Perez, and K. Yamazaki
    • Journal Title

      SIAM Journal on Control and Optimization

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Optimal Multiple Stopping with Negative Discount Rate and Random Refraction Times under Levy Models2015

    • Author(s)
      T. Leung, K. Yamazaki, and H. Zhang
    • Journal Title

      SIAM Journal on Control and Optimization

      Volume: 53 Pages: 2373-2405

    • DOI

      10.1137/140957317

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Optimality of Doubly Reflected Levy Processes in Singular Control2016

    • Author(s)
      K. Yamazaki
    • Organizer
      Workshop on Analysis and Applications of Stochastic Systems
    • Place of Presentation
      IMPA(ブラジル)
    • Year and Date
      2016-03-31 – 2016-03-31
    • Int'l Joint Research / Invited
  • [Presentation] 屈折反射レヴィー過程(特別講演)2016

    • Author(s)
      山崎和俊
    • Organizer
      日本数学会
    • Place of Presentation
      筑波大学
    • Year and Date
      2016-03-16 – 2016-03-16
    • Invited
  • [Presentation] An Analytic Recursive Method for Optimal Multiple Stopping: Canadization and Phase-Type Fitting2016

    • Author(s)
      K. Yamazaki
    • Organizer
      Winter Workshop on Operations Research, Finance and Mathematics, 2016
    • Place of Presentation
      サホロリゾート(北海道)
    • Year and Date
      2016-02-15 – 2016-02-15
    • Int'l Joint Research / Invited
  • [Presentation] Refracted-Reflected Levy Processes in M/G/1 queues2016

    • Author(s)
      山崎和俊
    • Organizer
      待ち行列シンポジウム
    • Place of Presentation
      多摩永山情報教育センター(東京)
    • Year and Date
      2016-01-21 – 2016-01-21
  • [Presentation] Optimality of Two-Parameter Strategies in Stochastic Control2015

    • Author(s)
      K. Yamazaki
    • Organizer
      Simposio de Probabilidad y Procesos Estocasticos
    • Place of Presentation
      Merida(メキシコ)
    • Year and Date
      2015-11-16 – 2015-11-20
    • Int'l Joint Research / Invited
  • [Presentation] Refracted-Reflected Spectrally Negative Levy Processes2015

    • Author(s)
      K. Yamazaki
    • Organizer
      Workshop on Stochastic Analysis and Related Topics 2015
    • Place of Presentation
      TU Dresden(ドイツ)
    • Year and Date
      2015-11-05 – 2015-11-05
    • Int'l Joint Research
  • [Presentation] Continuous-state branching processes2015

    • Author(s)
      K. Yamazaki
    • Organizer
      Summer School on Dirichlet Forms and Stochastic Analysis
    • Place of Presentation
      関西大学
    • Year and Date
      2015-08-24 – 2015-08-28
    • Int'l Joint Research
  • [Presentation] Optimality of Refraction Strategies for Spectrally Negative Levy Processes2015

    • Author(s)
      K. Yamazaki
    • Organizer
      Stochastic Processes and Applications Mongolia 2015
    • Place of Presentation
      National University of Mongolia(モンゴル)
    • Year and Date
      2015-08-07 – 2015-08-07
    • Int'l Joint Research
  • [Presentation] Optimality of Refraction Strategies for Spectrally Negative Levy Processes2015

    • Author(s)
      K. Yamazaki
    • Organizer
      Asian Quantitative Finance Conference
    • Place of Presentation
      香港中文大学(香港)
    • Year and Date
      2015-07-06 – 2015-07-06
    • Int'l Joint Research / Invited
  • [Presentation] レヴィー過程の確率制御2015

    • Author(s)
      山崎和俊
    • Organizer
      大規模複雑システムの最適モデリング手法の構築
    • Place of Presentation
      東京大学
    • Year and Date
      2015-06-02 – 2015-06-02
    • Invited
  • [Presentation] Optimality of Refraction Strategies for Spectrally Negative Levy Processes2015

    • Author(s)
      山崎和俊
    • Organizer
      金融市場におけるシステミックリスクの学際的分析
    • Place of Presentation
      京都大学
    • Year and Date
      2015-05-29 – 2015-05-29
    • Invited
  • [Presentation] Optimality of Refraction Strategies for Spectrally Negative Levy Processes2015

    • Author(s)
      K. Yamazaki
    • Organizer
      Insurance: Mathematics and Economics 2015
    • Place of Presentation
      University of Liverpool(イギリス)
    • Year and Date
      2015-05-25 – 2015-05-25
    • Int'l Joint Research
  • [Remarks] Kazutoshi Yamazaki

    • URL

      https://sites.google.com/site/kyamazak/

  • [Funded Workshop] 4th Asian Quantitative Finance Conference Osaka2016

    • Place of Presentation
      大阪大学中之島センター(大阪)
    • Year and Date
      2016-02-21 – 2016-02-23

URL: 

Published: 2017-01-06  

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