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Oizumi Ryo  大泉 嶺

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大泉 嶺  オオイズミ リョウ

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Researcher Number 80725771
Other IDs
Affiliation (Current) 2025: 国立社会保障・人口問題研究所, 国際関係部, 第3室長
Affiliation (based on the past Project Information) *help 2023: 国立社会保障・人口問題研究所, 国際関係部, 第3室長
2022: 国立社会保障・人口問題研究所, 国際関係部, 第三室長
2020 – 2021: 国立社会保障・人口問題研究所, 人口構造研究部, 主任研究官
Review Section/Research Field
Principal Investigator
Basic Section 12040:Applied mathematics and statistics-related
Keywords
Principal Investigator
マルコフ過程 / 推移行列モデル / 人口減少 / 構造化人口モデル / 0歳繁殖価の数学的構造の解明 / 一般化レスリー行列の安定例分布の数学的構造の解明 / 30代以降は都市部の出生率の影響が大きい / 地域間移動の少子化への影響は20代まで / 環境変動 / 個人差 … More / 異質性 / 確率制御方程式 / タイプ別再生産数 / 固有システム / 人口国際移動 / 行列モデル / 地域間移動 Less
  • Research Projects

    (1 results)
  • Research Products

    (23 results)
  • Co-Researchers

    (1 People)
  •  Theory and Analysis for population decline society by using generalized Leslie matrixPrincipal Investigator

    • Principal Investigator
      大泉 嶺
    • Project Period (FY)
      2020 – 2024
    • Research Category
      Grant-in-Aid for Early-Career Scientists
    • Review Section
      Basic Section 12040:Applied mathematics and statistics-related
    • Research Institution
      National Institute of Population and Social Security Research

All 2023 2022 2021 2020

All Journal Article Presentation Book

  • [Book] Population Dynamics Based on Individual Stochasticity2022

    • Author(s)
      Ryo Oizumi
    • Total Pages
      101
    • Publisher
      Springer Singapore
    • ISBN
      9789811935473
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Journal Article] タイプ別再生産数で見る日本の人口減少2022

    • Author(s)
      大泉 嶺
    • Journal Title

      人口問題研究

      Volume: 78 Pages: 106-117

    • Open Access
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Journal Article] Sensitivity analysis on the declining population in Japan: Effects of prefecture-specific fertility and interregional migration2022

    • Author(s)
      Oizumi Ryo、Inaba Hisashi、Takada Takenori、Enatsu Youichi、Kinjo Kensaku
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 9 Pages: e0273817-e0273817

    • DOI

      10.1371/journal.pone.0273817

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Journal Article] Evolution of heterogeneity under constant and variable environments2021

    • Author(s)
      R. Oizumi and H. Inaba
    • Journal Title

      PLoS ONE

      Volume: 16(9) Issue: 9 Pages: e0257377-e0257377

    • DOI

      10.1371/journal.pone.0257377

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-19K03614, KAKENHI-PROJECT-20K14368
  • [Presentation] 多状態年齢構造化人口モデルに現れるFredholm方程式2023

    • Author(s)
      大泉嶺
    • Organizer
      2023年度日本数理生物学会年会
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Sensitivity analysis of Japan's population decline based on multi-regional Leslie matrix model2023

    • Author(s)
      大泉嶺
    • Organizer
      應用数学seminar
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 多地域レスリー行列の理論と応用~日本の人口減少社会における国内・国際移動の影響~2023

    • Author(s)
      大泉嶺
    • Organizer
      ワークショップ「数学を用いる生物学」
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Analytical Representation of Eigensystem in Multiregional Leslie Matrix Model: Application to Sensitivity Analysis of Population Declining in Japan2023

    • Author(s)
      大泉嶺
    • Organizer
      Computational and Mathematical Population Dynamics 6
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 多地域レスリー 行列の理論と日本の人口減少における解析への応用2023

    • Author(s)
      大泉嶺, 金城謙作
    • Organizer
      企画セッション3「感染症と人口動態の数理」(組織者),日本人口学会 第 75 回大会
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Quantitative Effects of Regional Differences and International Migration on Population Decline in Japan Using A Matrix Model2023

    • Author(s)
      大泉嶺
    • Organizer
      2023 NCTS Interdisciplinary Two-Day Workshop: Population Dynamics and Related Topics
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 多地域レスリー行列を用いた日本の人口減少の感度解析2022

    • Author(s)
      大泉嶺*,稲葉寿,高田壯則,江夏洋一,金城謙作
    • Organizer
      個体群生態学会第38回大会
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Sensitivity analysis of Japan's population decline based on multi-regional Leslie matrix model2022

    • Author(s)
      Oizumi Ryo
    • Organizer
      NYCU Inter-Campus Forum of Population Science and Environmental Health
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 多地域レスリー行列を用いた日本の人口減少社会の解析2022

    • Author(s)
      大泉嶺,稲葉寿,高田壮則,江夏洋一,金城謙作
    • Organizer
      2021年度 MIMS 現象数理学研究拠点 共同研究集会「社会物理学とその周辺」
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 日本の人口減少における地域間移動と地域別出生率の影響~行列モデルによる感度分析とその理論~2022

    • Author(s)
      大泉 嶺
    • Organizer
      講演会:社会で貢献する数学
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] ロトカ・ヴォルテラ型種間競争と異質性 を持つ一回繁殖生物の生活史と個体群動態2022

    • Author(s)
      大泉嶺, 金城謙作, 江夏洋一
    • Organizer
      第32回日本数理生物学会大会(2022年度年会)
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Sensitivity analysis of Japan's population decline based on intergenerational migration history2022

    • Author(s)
      Oizumi Ryo
    • Organizer
      Seminar in Rob Salguero-Gomez’s lab (web), Oxford Univ.
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Reproductive Value and Life-History Evolution Under Stochasticity at Several Scales2022

    • Author(s)
      Oizumi Ryo
    • Organizer
      Ecology seminar (web), Stanford Univ.
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Stochasticity on life history and population dynamics2022

    • Author(s)
      Oizumi Ryo
    • Organizer
      The Eighth International Workshop on Biomathematics Modelling and Its Dynamical Analysis
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 生活史進化と確率制御理論2021

    • Author(s)
      大泉嶺
    • Organizer
      岡山確率論セミナー
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Sensitivity Analysis of The Declining Population: Effects of Prefecture Specific Fertility and Interregional Migration2021

    • Author(s)
      大泉嶺,稲葉寿,高田壮則,江夏洋一,金城謙作
    • Organizer
      SMB2021:Mathematical Biology on Translational Science & Promotion of Diversity, Equity, and Inclusion
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 繁殖価と最適生活史スケジュール問題2021

    • Author(s)
      大泉嶺
    • Organizer
      2021年度日本数理生物学会年会
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] Analysis and Theory Construction of Society with a Declining Population Using General Leslie Matrix Models2020

    • Author(s)
      大泉嶺
    • Organizer
      2020年日本数理生物学会年会
    • Data Source
      KAKENHI-PROJECT-20K14368
  • [Presentation] 日本の人口減少の数学的構造~地域間移動と出生力差が示す人口動態への定量的影響~2020

    • Author(s)
      大泉嶺
    • Organizer
      第72回日本人口学会年会
    • Data Source
      KAKENHI-PROJECT-20K14368
  • 1.  稲葉 寿
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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