MASAI HIDETOSHI 正井秀俊

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Masai Hidetoshi 正井秀俊

正井秀俊マサイヒデトシ

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Researcher Number	40735734
Other IDs
Affiliation (Current)	2025: 武蔵野美術大学, 造形学部, 准教授
Affiliation (based on the past Project Information) *help	2019 – 2023: 東京工業大学, 理学院, 助教 2017: 東京大学, 大学院数理科学研究科, 特別研究員
Review Section/Research Field	Principal Investigator Basic Section 11020:Geometry-related / Geometry Except Principal Investigator Medium-sized Section 11:Algebra, geometry, and related fields
Keywords	Principal Investigator 双曲幾何学 / ３次元多様体 / 双曲多様体 / タイヒミュラー空間 / 写像類群 / Weil-Peterrson 幾何 / 繰り込み体積 / 曲線複体 / ランダムウォーク Except Principal Investigator 不変量 / ３次元多様体 / 結び目

３次元双曲体積のタイヒミュラー理論を通した理解Principal Investigator
- Principal Investigator
  
  正井秀俊
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Tokyo Institute of Technology
３次元双曲多様体上の量子トポロジー
- Principal Investigator
  
  大槻知忠
- Project Period (FY)
  2021 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 11:Algebra, geometry, and related fields
- Research Institution
  Kyoto University
Statistics of Random 3-manifoldsPrincipal Investigator
- Principal Investigator
  
  Masai Hidetoshi
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Tokyo Institute of Technology
写像類群上のランダムウォークが定める種々の力学系Principal Investigator
- Principal Investigator
  
  正井秀俊
- Project Period (FY)
  2017 – 2020
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Geometry
- Research Institution
  The University of Tokyo

All 2024 2023 2022 2021 2020 2019

All Journal Article Presentation Book

[Book] 群と幾何をみる : 無限の彼方から2023
- Author(s)
  正井秀俊
- Total Pages
  192
- Publisher
  日本評論社
- ISBN
  4535789894
- Data Source
  KAKENHI-PROJECT-23K03085
[Book] 群と幾何をみる : 無限の彼方から2023
- Author(s)
  正井秀俊
- Total Pages
  192
- Publisher
  日本評論社
- ISBN
  4535789894
- Data Source
  KAKENHI-PROJECT-19K14525
[Journal Article] Quotients of the curve complex2024
- Author(s)
  Maher Joseph、Masai Hidetoshi、Schleimer Saul
- Journal Title
  
  Groups, Geometry, and Dynamics
  
  Volume: 18 Issue: 2 Pages: 379-405
- DOI
  10.4171/ggd/768
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K03085, KAKENHI-PROJECT-19K14525
[Journal Article] Visualizing deformations of complex structures on 4-punctured spheres2023
- Author(s)
  Hidetoshi Masai
- Journal Title
  
  RIMS kokyuroku
  
  Volume: 2263 Pages: 1-5
- Data Source
  KAKENHI-PROJECT-23K03085
[Journal Article] Visualizing deformations of complex structures on 4-punctured spheres2023
- Author(s)
  Hidetoshi Masai
- Journal Title
  
  RIMS Kokyuroku
  
  Volume: 2263 Pages: 1-5
- Data Source
  KAKENHI-PROJECT-19K14525
[Journal Article] A quick tour to the distance on Teichmuller space via renormalized volume2022
- Author(s)
  Hidetoshi Masai
- Journal Title
  
  RIMS 講究録
  
  Volume: No. 2219 Pages: 76-83
- Data Source
  KAKENHI-PROJECT-19K14525
[Journal Article] On systoles and ortho spectrum rigidity2022
- Author(s)
  Masai Hidetoshi、McShane Greg
- Journal Title
  
  Mathematische Annalen
  
  Volume: 385 Issue: 1-2 Pages: 939-959
- DOI
  10.1007/s00208-022-02365-0
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Journal Article] On continuity of drifts of the mapping class group2021
- Author(s)
  Masai Hidetoshi
- Journal Title
  
  Mathematical Research Letters
  
  Volume: 28 Issue: 3 Pages: 823-847
- DOI
  10.4310/mrl.2021.v28.n3.a8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On iso-orthospectrum surfaces.2024
- Author(s)
  正井秀俊
- Organizer
  KAIST Geometric Topology Fair 2024
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K03085
[Presentation] On iso-orthospectrum surfaces.2024
- Author(s)
  正井秀俊
- Organizer
  KAIST Geometric Topology Fair 2024
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] A distance on Teichmueller space via renormalized volume2023
- Author(s)
  正井秀俊
- Organizer
  The 14th MSJ-SI: New Aspects of Teichmuller theory
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On distances on distances2023
- Author(s)
  正井秀俊
- Organizer
  福岡大学トポロジーセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Visualizing deformations of hyperbolic and complex structures on 4-punctured spheres2023
- Author(s)
  正井秀俊
- Organizer
  トポロジーとコンピュータ2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Visualizing deformations of hyperbolic and complex structures on 4-punctured spheres2023
- Author(s)
  正井秀俊
- Organizer
  ウプサラ・東工大シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Visualizing deformations of hyperbolic and complex structures on 4-punctured spheres2023
- Author(s)
  正井秀俊
- Organizer
  Intelligence of Low-dimensional Topology
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] ビッグデータの利用と可視化, web アンケートデータを用いた水産練り製品の消費動向の解析2023
- Author(s)
  正井秀俊
- Organizer
  web アンケートデータを用いた水産練り製品の消費動向の解析
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On distances on distances2023
- Author(s)
  正井秀俊
- Organizer
  福岡大学トポロジーセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-23K03085
[Presentation] ビッグデータの利用と可視化2023
- Author(s)
  正井秀俊
- Organizer
  web アンケートデータを用いた水産練り製品の消費動向の解析
- Invited
- Data Source
  KAKENHI-PROJECT-23K03085
[Presentation] Visualizing deformations of hyperbolic and complex structures on 4-punctured spheres2023
- Author(s)
  正井秀俊
- Organizer
  Intelligence of Low-dimensional Topology
- Invited
- Data Source
  KAKENHI-PROJECT-23K03085
[Presentation] Visualizing deformations of hyperbolic and complex structures on 4-punctured spheres.2023
- Author(s)
  正井秀俊
- Organizer
  Friday Seminar on Knot Theory
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Visualizing deformations of hyperbolic and complex structures on 4-punctured spheres2023
- Author(s)
  正井秀俊
- Organizer
  Topology and Computer 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K03085
[Presentation] A distance on Teichmueller space via renormalized volume2023
- Author(s)
  正井秀俊
- Organizer
  The 14th MSJ-SI: New Aspects of Teichmueller theory
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K03085
[Presentation] 4 点穴あき球面のタイヒミュラー測地線に沿った複素変形2022
- Author(s)
  正井秀俊
- Organizer
  日本数学会
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] A distance on Teichmueller space via renormalized volume2022
- Author(s)
  正井秀俊
- Organizer
  YMSC Topology Seminar
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] 距離のレシピとそのタイヒミュラー理論への応用2022
- Author(s)
  正井秀俊
- Organizer
  東北大学幾何セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] 繰り込み体積とタイヒミュラー空間上の距離2022
- Author(s)
  正井秀俊
- Organizer
  第65回函数論シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] 写像類群上のランダムウォークについて2022
- Author(s)
  正井秀俊
- Organizer
  Random topics on Teichmuller theory
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] A note on distances and horofunctions2022
- Author(s)
  正井秀俊
- Organizer
  Geometry in Low dimensions 2022
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Complete exceptional surgeries on two-bridge links2021
- Author(s)
  正井秀俊
- Organizer
  The 16th East Asian Conference on Geometric Topology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Continuity of the drift of mapping class group2021
- Author(s)
  正井秀俊
- Organizer
  Geometric Group Theory in East Asia(GGTEA)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] 曲線複体の商空間2021
- Author(s)
  正井秀俊
- Organizer
  2020年度「リーマン面・不連続群論」研究集会
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Quotients of the curve complex2021
- Author(s)
  正井秀俊
- Organizer
  Geometry of discrete groups and hyperbolic spaces
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] ３次元多様体の（非）双曲性の計算機による判定2021
- Author(s)
  正井秀俊
- Organizer
  数学ソフトウェアとフリードキュメント 32
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] タイヒミュラー空間のホロ境界2021
- Author(s)
  正井秀俊
- Organizer
  トポロジーシンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On systoles and ortho spectrum rigidity2020
- Author(s)
  正井秀俊
- Organizer
  NUS Topology and Geometry Seminar
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On systoles and ortho spectrum rigidity2020
- Author(s)
  正井秀俊
- Organizer
  阪大トポロジーセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On systoles and ortho spectrum rigidity2020
- Author(s)
  正井秀俊
- Organizer
  2019年度「リーマン面・不連続群論」研究集会
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] Quotients of curve complex2020
- Author(s)
  正井秀俊
- Organizer
  京都大学微分トポロジーセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On systoles and ortho spectrum rigidity2019
- Author(s)
  正井秀俊
- Organizer
  Seminar on Geometry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On continuity of drifts of the mapping class group2019
- Author(s)
  正井秀俊
- Organizer
  首都大学幾何セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On the Continuity of Drifts of Mapping Class Groups2019
- Author(s)
  正井秀俊
- Organizer
  Geometric Topology Fair 2019
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525
[Presentation] On rigidity of length-related spectra2019
- Author(s)
  正井秀俊
- Organizer
  The 6th Tokyo Tech - Uppsala University Joint Symposium
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K14525

1. 大槻知忠 (50223871)

# of Collaborated Projects: 1 results

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2. 伊藤哲也 (00710790)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 佐伯修 (30201510)

# of Collaborated Projects: 1 results

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4. 茂手木公彦 (40219978)

# of Collaborated Projects: 1 results

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5. 藤原耕二 (60229078)

# of Collaborated Projects: 1 results

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6. 山下靖 (70239987)

# of Collaborated Projects: 1 results

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7. 森下昌紀 (40242515)

# of Collaborated Projects: 1 results

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8. 逆井卓也 (60451902)

# of Collaborated Projects: 1 results

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9. 宮澤康行 (60263761)

# of Collaborated Projects: 1 results

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10. 谷山公規 (10247207)

# of Collaborated Projects: 1 results

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11. 大山淑之 (80223981)

# of Collaborated Projects: 1 results

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12. 小林毅 (00186751)

# of Collaborated Projects: 1 results

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13. 小島定吉 (90117705)

# of Collaborated Projects: 1 results

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MASAI HIDETOSHI 正井 秀俊

Masai Hidetoshi 正井 秀俊

正井 秀俊 マサイ ヒデトシ

Research Projects

Research Products

Co-Researchers

３次元双曲体積のタイヒミュラー理論を通した理解Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

３次元双曲多様体上の量子トポロジー

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Statistics of Random 3-manifoldsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

写像類群上のランダムウォークが定める種々の力学系Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Book] 群と幾何をみる : 無限の彼方から2023

Author(s)

Total Pages

Publisher

ISBN

Data Source

[Book] 群と幾何をみる : 無限の彼方から2023

Author(s)

Total Pages

Publisher

ISBN

Data Source

[Journal Article] Quotients of the curve complex2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Visualizing deformations of complex structures on 4-punctured spheres2023

Author(s)

Journal Title

Data Source

[Journal Article] Visualizing deformations of complex structures on 4-punctured spheres2023

Author(s)

Journal Title

Data Source

[Journal Article] A quick tour to the distance on Teichmuller space via renormalized volume2022

Author(s)

Journal Title

Data Source

[Journal Article] On systoles and ortho spectrum rigidity2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On continuity of drifts of the mapping class group2021

Author(s)

Journal Title

DOI

Data Source

[Presentation] On iso-orthospectrum surfaces.2024

Author(s)

Organizer

Data Source

[Presentation] On iso-orthospectrum surfaces.2024

Author(s)

Organizer

Data Source

[Presentation] A distance on Teichmueller space via renormalized volume2023

Author(s)

Organizer

MASAI HIDETOSHI 正井秀俊

Masai Hidetoshi 正井秀俊

正井秀俊マサイヒデトシ