KONDO Takefumi 近藤剛史

… Alternative Names

Researcher Number	60467446
Affiliation (Current)	2021: 鹿児島大学, 理工学域理学系, 准教授
Affiliation (based on the past Project Information) *help	2015 – 2021: 鹿児島大学, 理工学域理学系, 准教授 2013: 神戸大学, 理学研究科, GCOE博士研究員 2011: 神戸大学, 理学研究科, グローバルCOE研究員
Review Section/Research Field	Principal Investigator Geometry / Basic Section 11020:Geometry-related Except Principal Investigator Geometry / Basic Section 12010:Basic analysis-related / Basic Section 11020:Geometry-related
Keywords	Principal Investigator 非線形スペクトルギャップ / Wirtingerの不等式 / 非正曲率空間 / 有限コクセター群 / 固定点性質 / スペクトルギャップ / 正多面体 / 二面体群 / Wirtinger の不等式 / 固定点定理 / アフィン作用 / コクセター群 / CAT(0)空間 … More Except Principal Investigator … More

幾何学的剛性理論の深化
- Principal Investigator
  
  井関裕靖
- Project Period (FY)
  2020 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Keio University
Wirtingerの不等式の変種とその応用Principal Investigator
- Principal Investigator
  
  近藤剛史
- Project Period (FY)
  2018 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Kagoshima University
Geometric analysis on metrics of the moduli of punctured Riemann surfaces
- Principal Investigator
  
  小櫃邦夫
- Project Period (FY)
  2018 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12010:Basic analysis-related
- Research Institution
  Kagoshima University
Nonlinear spectral gap with respect to non-positively curved spacesPrincipal Investigator
- Principal Investigator
  
  KONDO Takefumi
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Geometry
- Research Institution
  Kagoshima University
非正曲率空間への群作用Principal Investigator
- Principal Investigator
  
  近藤剛史
- Project Period (FY)
  2011
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Geometry
- Research Institution
  Kobe University
Study of problems on discrete groups by geometric methods
- Principal Investigator
  
  NAYATANI Shin
- Project Period (FY)
  2009 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Geometry
- Research Institution
  Nagoya University

All 2021 2020 2019 2018 2017 2016 2015 2012 2011 2010 2009 Other

All Journal Article Presentation

[Journal Article] On a question of Gromov about the Wirtinger inequalities2017
- Author(s)
  Takefumi Kondo, Tetsu Toyoda,Takato Uehara
- Journal Title
  
  Geometriae Dedicata
  
  Volume: 印刷中
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-15K17538
[Journal Article] N-step energy of maps and fixed-point property of random groups2012
- Author(s)
  納谷信、井関裕靖、近藤剛史
- Journal Title
  
  Groups Geom. Dyn.
  
  Volume: 6 Pages: 701-736
- DOI
  10.4171/ggd/171
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21340014, KAKENHI-PROJECT-24654016
[Journal Article] N-step energy of maps and fixed-point property of random groups2012
- Author(s)
  井関裕靖, 近藤剛史, 納谷信
- Journal Title
  
  Groups, Geometry, and Dynamics
  
  Volume: 6 Pages: 701-736
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21340014
[Journal Article] CAT(0) spaces and expanders2012
- Author(s)
  近藤剛史
- Journal Title
  
  Mathematische Zeitschrift
  
  Volume: 271 Pages: 343-355
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21340014
[Journal Article] Fixed-point property of random groups2009
- Author(s)
  Shin Nayatani, Hiroyasu Izeki, Takefumi Kondo
- Journal Title
  
  Annals of Global Analysis and Geometry 35
  
  Pages: 363-379
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21340014
[Journal Article] Fixed-point property of random groups2009
- Author(s)
  井関裕靖, 近藤剛史, 納谷信
- Journal Title
  
  Annals of Global Analysis and Geometry
  
  Volume: 35 Pages: 363-379
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21340014
[Journal Article] N-step energy of maps and fixed-point property of random groups
- Author(s)
  納谷信、井関裕靖、近藤剛史
- Journal Title
  
  Groups, Geometry, and Dynamics
  
  Volume: (掲載確定)(掲載予定)(未定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] Wirtinger inequalities for finite Coxeter groups2021
- Author(s)
  近藤剛史
- Organizer
  測地線及び関連する諸問題
- Invited
- Data Source
  KAKENHI-PROJECT-18K03305
[Presentation] グラフのラプラシアンと全域森の数え上げ2020
- Author(s)
  近藤剛史
- Organizer
  「測地線及び関連する諸問題」
- Invited
- Data Source
  KAKENHI-PROJECT-18K03338
[Presentation] グラフのラプラシアンと全域森の数え上げ2020
- Author(s)
  近藤剛史
- Organizer
  測地線及び関連する諸問題
- Invited
- Data Source
  KAKENHI-PROJECT-18K03305
[Presentation] Coxeter 群に対する Wirtinger の不等式の変種2019
- Author(s)
  近藤剛史
- Organizer
  幾何学と組合せ論2019
- Invited
- Data Source
  KAKENHI-PROJECT-18K03338
[Presentation] Coxeter 群に対する Wirtinger の不等式の変種2019
- Author(s)
  近藤剛史
- Organizer
  測地線および関連する諸問題
- Invited
- Data Source
  KAKENHI-PROJECT-18K03305
[Presentation] Coxeter 群に対する Wirtinger の不等式の変種2019
- Author(s)
  近藤剛史
- Organizer
  測地線および関連する諸問題
- Invited
- Data Source
  KAKENHI-PROJECT-18K03338
[Presentation] Coxeter 群に対する Wirtinger の不等式の変種2019
- Author(s)
  近藤剛史
- Organizer
  幾何学と組合せ論2019
- Invited
- Data Source
  KAKENHI-PROJECT-18K03305
[Presentation] Distortion of some finite graphs2018
- Author(s)
  近藤剛史
- Organizer
  Korea-Japan Workshop on Algebra and Combinatorics
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] Coxeter 群に対する Wirtinger の不等式の変種2018
- Author(s)
  近藤剛史
- Organizer
  福岡大学微分幾何研究集会2018(招待講演)
- Invited
- Data Source
  KAKENHI-PROJECT-18K03338
[Presentation] Coxeter 群に対する Wirtinger の不等式の変種2018
- Author(s)
  近藤剛史
- Organizer
  福岡大学微分幾何研究集会2018
- Invited
- Data Source
  KAKENHI-PROJECT-18K03305
[Presentation] Wirtingerの不等式の変種と非線形スペクトルギャップ2017
- Author(s)
  近藤剛史
- Organizer
  信州大学数理科学談話会
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] Wirtingerの不等式の変種とその応用2017
- Author(s)
  近藤剛史
- Organizer
  幾何学コロキウム
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] 有限グラフの歪み2017
- Author(s)
  近藤剛史
- Organizer
  第2回摂南大学数理セミナー
- Place of Presentation
  摂南大学寝屋川キャンパス(大阪府・寝屋川市)
- Year and Date
  2017-01-21
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] ユークリッド空間に対するスペクトルギャップと CAT(0) 空間に対するスペクトルギャップ2017
- Author(s)
  近藤剛史
- Organizer
  測地線および関連する諸問題
- Place of Presentation
  熊本大学教育学部(熊本県・熊本市)
- Year and Date
  2017-01-08
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] 離散群の等長作用とグラフのスペクトルギャップ2017
- Author(s)
  近藤剛史
- Organizer
  離散幾何構造セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] Distortion of some finite graphs2017
- Author(s)
  近藤剛史
- Organizer
  Hakata Workshop 2017
- Place of Presentation
  リファレンス駅東ビル(福岡県・福岡市)
- Year and Date
  2017-02-23
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] 多面体の非線形スペクトルギャップ2016
- Author(s)
  近藤剛史
- Organizer
  第 63 回幾何学シンポジウム
- Place of Presentation
  岡山大学津島キャンパス(岡山県・岡山市)
- Year and Date
  2016-08-29
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] グラフの非線形スペクトルギャップのシャープな評価に向けて2016
- Author(s)
  近藤剛史
- Organizer
  福岡大学幾何学セミナー
- Place of Presentation
  福岡大学理学部(福岡県・福岡市)
- Year and Date
  2016-07-14
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] Gromov による Wirtinger の不等式と非線形スペクトルギャップ2016
- Author(s)
  近藤剛史
- Organizer
  第11回代数・解析・幾何学セミナー
- Place of Presentation
  鹿児島大学理学部(鹿児島県鹿児島市)
- Year and Date
  2016-02-17
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] ヒルベルト空間へのアフィン作用に対する固定点性質2016
- Author(s)
  近藤剛史
- Organizer
  日本数学会2016年度年会
- Place of Presentation
  筑波大学(茨城県つくば市)
- Year and Date
  2016-03-18
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] Gromov による Wirtinger の不等式と非線形スペクトルギャップ2015
- Author(s)
  近藤剛史
- Organizer
  名古屋大学多元数理科学研究科談話会
- Place of Presentation
  名古屋大学多元数理科学研究科(愛知県名古屋市)
- Year and Date
  2015-12-02
- Invited
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] Nonlinear spectral gaps with respect to CAT(0) spaces2015
- Author(s)
  近藤剛史
- Organizer
  Rigidity School, Tokyo 2015
- Place of Presentation
  東京大学数理科学研究科(東京都目黒区)
- Year and Date
  2015-11-21
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17538
[Presentation] Poincare inequality and fixed point property of isometric group actions2012
- Author(s)
  近藤剛史
- Organizer
  Group actions and K-theory
- Place of Presentation
  京都大学(京都府)(招待講演)
- Year and Date
  2012-03-15
- Data Source
  KAKENHI-PROJECT-23740052
[Presentation] Wirtingerの不等式と非線形スペクトルギャップ2012
- Author(s)
  近藤剛史
- Organizer
  淡路島幾何学研究集会2012
- Place of Presentation
  南あわじ市松帆古津路国民宿舎慶野松原荘
- Year and Date
  2012-01-28
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] Wirtingerの不等式と非線形スペクトルギャップ2012
- Author(s)
  近藤剛史
- Organizer
  淡路島幾何学研究集会2012
- Place of Presentation
  国民宿舎慶野松原荘(兵庫県)(招待講演)
- Year and Date
  2012-01-28
- Data Source
  KAKENHI-PROJECT-23740052
[Presentation] 木の非線形スペクトルギャップ2012
- Author(s)
  近藤剛史, 豊田哲
- Organizer
  日本数学会2012年度年会
- Place of Presentation
  東京理科大学神楽坂キャンパス
- Year and Date
  2012-03-28
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] Poincare inequality and fixed point property of isometric group actions2012
- Author(s)
  近藤剛史
- Organizer
  Group actions and K-theory
- Place of Presentation
  京都大学数学教室
- Year and Date
  2012-03-15
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] 有限グラフの非線形スペクトルギャップ2011
- Author(s)
  近藤剛史
- Organizer
  第58回幾何学シンポジウム
- Place of Presentation
  山口大学(山口県)(招待講演)
- Year and Date
  2011-08-28
- Data Source
  KAKENHI-PROJECT-23740052
[Presentation] ポアンカレ不等式とCAT(0)空間2011
- Author(s)
  近藤剛史
- Organizer
  多様体上の微分方程式
- Place of Presentation
  金沢大学サテライトプラザ(石川県)(招待講演)
- Year and Date
  2011-11-12
- Data Source
  KAKENHI-PROJECT-23740052
[Presentation] 距離空間のマルコフタイプ2011
- Author(s)
  近藤剛史
- Organizer
  淡路島幾何学研究集会2011
- Place of Presentation
  南あわじ市松帆古津路国民宿舎慶野松原荘
- Year and Date
  2011-02-10
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] ポアンカレ不等式とCAT(0)空間2011
- Author(s)
  近藤剛史
- Organizer
  多様体上の微分方程式
- Place of Presentation
  金沢大学サテライトプラザ
- Year and Date
  2011-11-12
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] 有限グラフの非線形スペクトルギャップ2011
- Author(s)
  近藤剛史
- Organizer
  第58回幾何学シンポジウム
- Place of Presentation
  山口大学吉田キャンパス
- Year and Date
  2011-08-28
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] CAT(0) spaces and nonlinear spectral gap2011
- Author(s)
  近藤剛史
- Organizer
  Long Term Workshop Geometry and Analysis
- Place of Presentation
  京都大学
- Year and Date
  2011-03-16
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] Generalized polygonの歪み2010
- Author(s)
  近藤剛史
- Organizer
  日本数学会2010年度年会
- Place of Presentation
  慶應義塾大学矢上キャンパス
- Year and Date
  2010-03-25
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] 有限生成群のヒルベルト空間への等長作用と性質(T)2010
- Author(s)
  近藤剛史
- Organizer
  トロピカル幾何と超離散系の新展開
- Place of Presentation
  京都大学
- Year and Date
  2010-03-10
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] 特異なCAT(0)空間2010
- Author(s)
  近藤剛史
- Organizer
  日本数学会2010年度秋季総合分科会
- Place of Presentation
  名古屋大学
- Year and Date
  2010-09-25
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] Random groups and scaling limit argument2010
- Author(s)
  近藤剛史
- Organizer
  第5回日中友好幾何学研究集会
- Place of Presentation
  OIST (沖縄科学技術研究基盤整備機構) Seaside House
- Year and Date
  2010-01-30
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] スケール極限による固定点定理2010
- Author(s)
  近藤剛史
- Organizer
  調和写像論の深化と展望
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2010-06-03
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] スケール極限を用いた離散群の固定点定理2010
- Author(s)
  近藤剛史
- Organizer
  確率論と幾何学
- Place of Presentation
  京都大学
- Year and Date
  2010-01-08
- Data Source
  KAKENHI-PROJECT-21340014
[Presentation] Isometric group action on Hilbert spaces2009
- Author(s)
  近藤剛史
- Organizer
  Discrete Geometry related to Groups and Dynamics
- Place of Presentation
  愛媛大学
- Year and Date
  2009-09-01
- Data Source
  KAKENHI-PROJECT-21340014

1. NAYATANI Shin (70222180)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
2. IZEKI Hiroyasu (90244409)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
3. KANAI Masahiko (70183035)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. KOTANI Motoko (50230024)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. NAITO Hisashi (40211411)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. KAMADA Hiroyuki (00249799)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. KOBAYASHI Toshimasa (30399125)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. ITO Kentaro (00324400)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 小櫃邦夫 (00325763)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 愛甲正 (00192831)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

KONDO Takefumi 近藤 剛史

近藤 剛史 コンドウ タケフミ

Research Projects

Research Products

Co-Researchers

幾何学的剛性理論の深化

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Wirtingerの不等式の変種とその応用Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Geometric analysis on metrics of the moduli of punctured Riemann surfaces

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Nonlinear spectral gap with respect to non-positively curved spacesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

非正曲率空間への群作用Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Study of problems on discrete groups by geometric methods

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] On a question of Gromov about the Wirtinger inequalities2017

Author(s)

Journal Title

Data Source

[Journal Article] N-step energy of maps and fixed-point property of random groups2012

Author(s)

Journal Title

DOI

Data Source

[Journal Article] N-step energy of maps and fixed-point property of random groups2012

Author(s)

Journal Title

Data Source

[Journal Article] CAT(0) spaces and expanders2012

Author(s)

Journal Title

Data Source

[Journal Article] Fixed-point property of random groups2009

Author(s)

Journal Title

Data Source

[Journal Article] Fixed-point property of random groups2009

Author(s)

Journal Title

Data Source

[Journal Article] N-step energy of maps and fixed-point property of random groups

Author(s)

Journal Title

Data Source

[Presentation] Wirtinger inequalities for finite Coxeter groups2021

Author(s)

Organizer

Data Source

[Presentation] グラフのラプラシアンと全域森の数え上げ2020

Author(s)

Organizer

Data Source

[Presentation] グラフのラプラシアンと全域森の数え上げ2020

Author(s)

KONDO Takefumi 近藤剛史

近藤剛史コンドウタケフミ