OTA Haruto 大田春外

… Alternative Names

Researcher Number	40126769
Affiliation (based on the past Project Information) *help	2016: 静岡大学, 教育学部, 教授 2015: 静岡大学, 教育学部, 名誉教授 2000 – 2014: 静岡大学, 教育学部, 教授 1987 – 1996: 静岡大学, 教育学部, 助教授
Review Section/Research Field	Principal Investigator Geometry / 代数学・幾何学 / General mathematics (including Probability theory/Statistical mathematics) / General mathematics (including Probability theory/Statistical mathematics) Except Principal Investigator 代数学・幾何学 / Education on school subjects and activities / 解析学 / General mathematics (including Probability theory/Statistical mathematics) / Geometry / Geometry / Science education / Foundations of mathematics/Applied mathematics
Keywords	Principal Investigator 位相空間 / 連続関数 / アーベル群 / 双対群 / 距離空間 / 集合論 / 拡張問題 / Dowker空間 / 正規空間 / 可測濃度 … More Except Principal Investigator 数学教育 / 類群 / 位相群 / 距離空間 / 自由位相群 / 強分岐 / 関数解析 / バナッハ空間 / 連続線形写像 / コンパクト写像 / 算数教育 / 幾何学 / 自由可換位相群 / 一様連続関数 / ストレート空間 / 幾何教育 / 証明 / Pixley-Roy / Scheepers予想 / k-空間 / 商写像 / Topological group / Free topological group / k-space / Quotient mapping / Metric space / ガロア加群構造 / 特異イデアル / 非アルキメデス体 / シアウダ-分解 / 直和分解 / ガロアカロ群構造 / 非アルキメデス的付値体 / シャウダー分解 / 共役空間 / 補空間 / 推論 / 層空間 / 閉部分空間 / 一様局所連結空間 / 積空間 / コンパクト空間 / かたちの数理科学 / 大学院教育 / 野生的空間 / トポロジー / かたちの数理科目 / 授業 / 公理的集合論 / 強制法 / 数学基礎論 / selective separability / cardinal function / Pixley-Roy Hyperspace / the discrete countable chain condition / 関数空間 / k-network / 数学科教員養成 / 数学的活動 / 図形教育 / 置換 / 位相空間 / パナッハ空間 / 次元 / パラコンパクト / コンパクト化 / カテゴリー / 距離化可能空間 / フレッシェ空間 / ススリンプロパティー / タイトネス / 位相構造 / 実数値関数 / 連続関数 / Tightness / 図形指導 / 空間概念 / イギリスの幾何教育 / mathematics education / teaching geometry / teaching space and shape / arithmetic education / spatial concept / teaching geometry in England / proof / Pixley-Roy hyperspace / Pixley-Roy topology Less

A Study on mathematics curriculum for fostering the mathematics teachers in secondary school emphasizing Practical Teaching Ability
- Principal Investigator
  
  KUNIMUNE SUSUMU
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Education on school subjects and activities
- Research Institution
  Shizuoka University
Applications of Pixley-Roy hyperspaces to Scheepers' conjecture on special subsets of reals
- Principal Investigator
  
  SAKAI MASAMI
- Project Period (FY)
  2013 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Foundations of mathematics/Applied mathematics
- Research Institution
  Kanagawa University
A Study on Teaching Geometry with an Emphasis on Learning Process to discover the property and then prove it
- Principal Investigator
  
  KUNIMUNE Susumu
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Education on school subjects and activities
- Research Institution
  Shizuoka University
Set-thoretic approach to the extension problem of continuous functions in topologyPrincipal Investigator
- Principal Investigator
  
  OHTA Haruto
- Project Period (FY)
  2010 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Shizuoka University
Applications of Infinite combinatorics and forcing theory
- Principal Investigator
  
  YORIOKA Teruyuki
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Shizuoka University
A study on Scheepers' conjecture of special subsets of reals in view of a sequence of upper semi-continuous functions
- Principal Investigator
  
  SAKAI Masami
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kanagawa University
A Study on Teaching of Geometry with an Emphasis on Fostering Mathematical Reasoning Ability
- Principal Investigator
  
  KUNIMUNE Susumu
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Education on school subjects and activities
- Research Institution
  Shizuoka University
Study on the relation between local connectedness and uniform continuity on metric spaces as well as topological groups
- Principal Investigator
  
  YAMADA Kohzo
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
Set-theoretic approach to the extension problem of continuous functions on topological spacesPrincipal Investigator
- Principal Investigator
  
  OHTA Haruto
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Shizuoka University
新領域科目「かたちの数理科学」と博士課程後期における数理科学教育
- Principal Investigator
  
  小山晃
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  Science education
- Research Institution
  Shizuoka University
A Study on Improving Teaching of Geometry with an Emphasis on Cooperation across Primary and Secondary Schools
- Principal Investigator
  
  KUNIMUNE Susumu
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Education on school subjects and activities
- Research Institution
  Shizuoka University
Research of dimension and topological structures of topological groups
- Principal Investigator
  
  YAMADA Kohzo
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
Research of topological and geometric structures of topological groups
- Principal Investigator
  
  YAMADA Kohzo
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
Research of applications of set theory to the,extension problem of continuous functionsPrincipal Investigator
- Principal Investigator
  
  OHTA Haruto
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Shizuoka University
無限アーベル群論へのトポロジーの応用の研究Principal Investigator
- Principal Investigator
  
  大田春外
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
トポロジーを応用した双対群の研究Principal Investigator
- Principal Investigator
  
  大田春外
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
トポロジーを応用した無限アーベル群論の研究Principal Investigator
- Principal Investigator
  
  大田春外
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
無限アーベル群論へのトポロジーの応用の研究Principal Investigator
- Principal Investigator
  
  大田春外
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
整数表現とその関連分野の研究
- Principal Investigator
  
  宮田由雅
- Project Period (FY)
  1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Shizuoka University
非アルキメデス的付値体上のバナッハ空間論の研究
- Principal Investigator
  
  清澤毅光
- Project Period (FY)
  1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Shizuoka University
位相的方法を用いたア-ベル群の研究Principal Investigator
- Principal Investigator
  
  大田春外
- Project Period (FY)
  1991
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Shizuoka University
整数表現とその関連分野の研究
- Principal Investigator
  
  宮田由雅
- Project Period (FY)
  1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Shizuoka University
非アルキメデス的付値体上のバナッハ空間論の研究
- Principal Investigator
  
  清澤毅光
- Project Period (FY)
  1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Shizuoka University
主整数環の代数的性質と数論的性質との関連についての研究
- Principal Investigator
  
  MIYATA Yoshimasa
- Project Period (FY)
  1989
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Shizuoka University
位相空間論、次元論とその関連分野の研究
- Principal Investigator
  
  勝田雄吉
- Project Period (FY)
  1988
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Shizuoka University
無限アーベル群論へのトポロジーの応用の研究Principal Investigator
- Principal Investigator
  
  大田春外
- Project Period (FY)
  1987
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Shizuoka University

All 2014 2013 2012 2011 2010 2009 2007

All Journal Article Presentation Book

[Book] 解いてみよう位相空間，改訂版2014
- Author(s)
  大田春外
- Total Pages
  262
- Publisher
  日本評論社
- Data Source
  KAKENHI-PROJECT-22540123
[Book] はじめての集合と位相2012
- Author(s)
  大田春外
- Total Pages
  261
- Publisher
  日本評論社
- Data Source
  KAKENHI-PROJECT-22540123
[Book] 高校と大学をむすぶ幾何学2010
- Author(s)
  大田春外
- Publisher
  日本評論社
- Data Source
  KAKENHI-PROJECT-22530961
[Book] E.Pearl(ed.)Open Problems in Topology II, Extension problems of real-valued continuous functions(pp.35-45)2007
- Author(s)
  Haruto Ohta
- Total Pages
  763
- Publisher
  Elsevier
- Data Source
  KAKENHI-PROJECT-19540122
[Book] Extension problems of realvalued continuous functions2007
- Author(s)
  Haruto Ohta, Kaori Yamazaki
- Publisher
  Elsevier
- Data Source
  KAKENHI-PROJECT-19540122
[Journal Article] Every separable metrizable space has a proper dyadic subbase2013
- Author(s)
  H. Ohta,H. Tsuiki and K. Yamada
- Journal Title
  
  Cornell Univ. Library
  
  Volume: arXiv:1305.3393
- URL
  http://arxiv.org/abs/1305.3393
- Data Source
  KAKENHI-PROJECT-22540123
[Journal Article] Elementary submodel arguments in Balogh' S Dowker spaces2012
- Author(s)
  Haruto Ohta, Teruyuki Yorioka
- Journal Title
  
  Topology Proceedings
  
  Volume: 40 Pages: 289-296
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540124
[Journal Article] Elementary submodel arguments in Balogh's Dowker spaces2012
- Author(s)
  Haruto Ohta
- Journal Title
  
  Topology Proceedngs
  
  Volume: 40 Pages: 289-296
- NAID
  120003895661
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540123
[Journal Article] Elementary submodel arguments inBalogh's Dowker spaces2012
- Author(s)
  Haruto Ohta and Teruyuki Yorioka
- Journal Title
  
  TopologyProc
  
  Volume: 40 Pages: 289-296
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540124
[Journal Article] Elementary submodel arguments in Balogh's Dowker spaces2012
- Author(s)
  H. Ohta and T.Yorioka
- Journal Title
  
  Topology Proceedings
  
  Volume: 40 Pages: 289-296
- NAID
  120003895661
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540123
[Journal Article] Independent subbases and non-re- dundant codings of separable metric spaces2011
- Author(s)
  H. Ohta,H. Tsuiki and S. Yamada
- Journal Title
  
  Topology and its Applications
  
  Volume: 158 Pages: 1-14
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540123
[Journal Article] Independent subbases and non-redundant codings of separable metrizable spaces2011
- Author(s)
  Haruto Ohta, Hideki Tsuiki, Shuji Yamada
- Journal Title
  
  Topology and its Applications
  
  Volume: 158 Pages: 1-14
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540123
[Journal Article] Przymusinski's characterization of countably Katetov spaces2009
- Author(s)
  Haruto Ohta
- Journal Title
  
  Topology Proceedings Vol.34
  
  Pages: 147-159
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540122
[Journal Article] Przymusinski's characterization of countably Katetov spaces2009
- Author(s)
  Haruto Ohta
- Journal Title
  
  Topology Proceedings 34
  
  Pages: 147-159
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540122
[Journal Article] Sequences of semicontinuous functions accompanying continuous functions2009
- Author(s)
  大田春外, 酒井政美
- Journal Title
  
  Topology Appl 156,no.17
  
  Pages: 2683-2691
- NAID
  120001662293
- Data Source
  KAKENHI-PROJECT-19540072
[Journal Article] Rectangular normality of product spaces2009
- Author(s)
  Haruto Ohta
- Journal Title
  
  Queat ions and Answers in General Topology 27
  
  Pages: 23-29
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540122
[Journal Article] Rectangular normality of product spaces2009
- Author(s)
  Haruto Ohta
- Journal Title
  
  Questions and Answers in General Topology Vol.27
  
  Pages: 23-29
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540122
[Journal Article]2009
- Author(s)
  長崎栄三・國宗進・太田伸也・相馬一彦
- Journal Title
  
  中学校新数学科の授業創り (1) 豊かな数学の授業を創る(明治図書出版)
- Data Source
  KAKENHI-PROJECT-19530798
[Journal Article] Sequences of semicontinuous functions accompanying continuous functions2009
- Author(s)
  Haruto Ohta, Masami Sakai
- Journal Title
  
  Topology and its Applications 156
  
  Pages: 2683-2691
- NAID
  120001662293
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540122
[Journal Article] Sequences of semi-continuous functions accompanying continuous functions2009
- Author(s)
  Haruto Ohta, Masami Sakai
- Journal Title
  
  Topology and its Applications Vol.156
  
  Pages: 2683-2691
- NAID
  120001662293
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540122
[Presentation] Elementary sub- model arguments in Balogh's Dowker spaces2011
- Author(s)
  大田春外,依岡輝幸
- Organizer
  日本数学会2011年度秋季総合分科会
- Place of Presentation
  信州大学理学部
- Year and Date
  2011-09-28
- Data Source
  KAKENHI-PROJECT-22540123
[Presentation] 遺伝的正規な閉包を持つDowker空間の構成2010
- Author(s)
  大田春外,依岡輝幸,P.J.Szeptycki,W.Weiss
- Organizer
  2010General Topologyシンポジウム
- Place of Presentation
  筑波大学
- Year and Date
  2010-12-21
- Data Source
  KAKENHI-PROJECT-22540123
[Presentation] 平方がhereditarily normalであるDowker spaceが存在する2010
- Author(s)
  大田春外
- Organizer
  2010年度General Topologyシンポジウム
- Place of Presentation
  筑波大学
- Year and Date
  2010-12-21
- Data Source
  KAKENHI-PROJECT-22540123
[Presentation] Sequences of semicontinuous functions accompanying contimuous functions2009
- Author(s)
  大田春外, 酒井政美
- Organizer
  日本数学科い2009年度秋季総合分科会
- Place of Presentation
  大阪大学
- Year and Date
  2009-09-26
- Data Source
  KAKENHI-PROJECT-19540072
[Presentation] Sequences of semicontinuous functions accompanying continuous functions2009
- Author(s)
  大田春外
- Organizer
  日本数学会2009年度秋季総合分科会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2009-09-26
- Data Source
  KAKENHI-PROJECT-19540122
[Presentation] 自己稠密可分距離空間の独立部分基底2009
- Author(s)
  大田春外
- Organizer
  日本数学会2007年度秋季総合分科会
- Place of Presentation
  東北大学
- Year and Date
  2009-09-23
- Data Source
  KAKENHI-PROJECT-19540122
[Presentation] Sequences of semicontinuous functions accompanying continuous functions2009
- Author(s)
  大田春外
- Organizer
  2009日本数学会秋季総合分科会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2009-09-26
- Data Source
  KAKENHI-PROJECT-19540122
[Presentation] 自己稠密可分距離空間の独立部分基底2007
- Author(s)
  大田春外
- Organizer
  日本数学会2007年度秋期総合分科会
- Place of Presentation
  東北大学
- Year and Date
  2007-09-23
- Data Source
  KAKENHI-PROJECT-19540122

1. MIYATA Yoshimasa (50022207)

# of Collaborated Projects: 15 results

# of Collaborated Products: 0 results
2. KIYOSAWA Takemitsu (40015566)

# of Collaborated Projects: 13 results

# of Collaborated Products: 0 results
3. YAMADA Kozo (00200717)

# of Collaborated Projects: 12 results

# of Collaborated Products: 3 results
4. 安田潤 (10021883)

# of Collaborated Projects: 10 results

# of Collaborated Products: 0 results
5. 金井省二 (40022206)

# of Collaborated Projects: 9 results

# of Collaborated Products: 0 results
6. 勝田雄吉 (80036186)

# of Collaborated Projects: 8 results

# of Collaborated Products: 0 results
7. KUNIMUNE Susumu (50214979)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
8. KUMAKURA Hiroyuki (00377706)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
9. TAMANO Kenichi (90171892)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
10. NAKAMURA Takashi (70303394)

# of Collaborated Projects: 3 results

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11. MATSUMOTO Shinichiro (40447660)

# of Collaborated Projects: 3 results

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12. KONDO Yutaka (80551035)

# of Collaborated Projects: 3 results

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13. YAMAZAKI Kaori (80301076)

# of Collaborated Projects: 3 results

# of Collaborated Products: 1 results
14. SAKAI Masami (60215598)

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15. 鈴木孝厚 (60022216)

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16. FUJITA Taro

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17. HAYAKAWA Ken (40585387)

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18. YORIOKA Teruyuki (60432192)

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# of Collaborated Products: 5 results
19. SHAKHMATOV Dmitri (90253294)

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20. 堀江雅幸 (20115455)

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21. HATTA Hiroe

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22. HARA Kinji

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23. KONDO Masao

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24. SAKAMOTO Kenji

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25. MOCHIZUKI Miki

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26. BRENDLE Jorg (70301851)

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27. YAJIMA Yukinobu (10142548)

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28. HANAKI RYO (70549162)

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29. ONO Jin (80115443)

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30. MOROZUMI Tatsuo (50324322)

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31. KADA Masaru (00312447)

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32. 小山晃 (40116158)

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33. 千葉慶子 (90022227)

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34. 鈴木信行 (60216421)

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35. 田中直樹 (00207119)

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36. 清水扇丈 (50273165)

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37. 久村裕憲 (30283336)

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38. OHOHTA Ikumi

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39. SASASE Daisuke

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40. KAWAI IKUMI

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41. YOSHIMURA HISAMI

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42. JOHNS Keith

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43. KEITH Johns

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44. Keith Jones

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45. 国宗進

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OTA Haruto 大田 春外

太田 春外 オオタ ハルト

OHTA Haruto 大田 春外

大田 春外 オウタ ハルト

Research Projects

Research Products

Co-Researchers

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Set-thoretic approach to the extension problem of continuous functions in topologyPrincipal Investigator

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Set-theoretic approach to the extension problem of continuous functions on topological spacesPrincipal Investigator

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Research of applications of set theory to the,extension problem of continuous functionsPrincipal Investigator

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OTA Haruto 大田春外

太田春外オオタハルト

OHTA Haruto 大田春外

大田春外オウタハルト