HASEGAWA Izumi 長谷川和泉

… Alternative Names

長谷川和泉ハセカ゛ワイズミ

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Researcher Number	50002473
Other IDs
Affiliation (based on the past Project Information) *help	2013: 北海道教育大学, 教育学部, 名誉教授 2006 – 2010: 北海道教育大学, 教育学部, 教授 2005: Hokkaido University of Education, Faculty of Education, Professor, 教育学部札幌校, 教授 2004: Hokkaido Univ.of Education, Sapporo Campus, Professor, 教育学部・札幌校, 教授 2003: 北海道教育大学, 教育学部旭川校, 教授 … More 2000 – 2002: Hokkaido Univ.of Education, 教育学部・旭川校, 教授 1998 – 1999: Sapporo College, Professor, 教育学部札幌校, 教授 1995 – 1999: 北海道教育大学, 教育学部・札幌校, 教授 1993: 北海道教育大学, 教育学部・札幌校, 教授 1992: 北海道教育大学, 札幌分校, 教授 1991: 北海道教育大学, 教育学部・札幌分校, 助教授 Less
Review Section/Research Field	Principal Investigator Geometry Except Principal Investigator Algebra / 解析学 / Basic analysis / Algebra / Basic analysis / Geometry / 代数学・幾何学
Keywords	Principal Investigator harmonic curoature / Ricci tensor / hypersurface / Sasakian space form Except Principal Investigator Numerical radius / Numerical range / Weakly unitarily invariant norm / Aluthge transformation / Spectrum / λ-Aluthge transformation … More / Operator radius / Approximant / 有限群の表現論 / ブロック多元環 / Norm Inequality / Operetor radius / Aluthge transform / Absolute norm / q-numerical range / C-numerical range / rank reducing / Square root of matrix / operator radius / Frobenius写像 / Big Cohen-Macaulay加群 / 数域半径 / 作用素ノルム / Cohomology / Complex of Modules / Glauberman Correspondence / Derived Equivalence / Block Algebra / Representation of Finite Group / 加群の複体とコホモロジー / コホモロジー / 加群の複体 / グラウバウマン対応 / 導来同値 / Broue's Conjecture / Shintani Descent / Splendid Tilting Complexes / Block Algebras / Representations of Finite Groups / ブルエ予想 / 新谷ディセント / 傾斜複体 / ρ-contraction / λ- Aluthge transformation / Rank reducing / Trace / numerical range / Golden-Thompson inequality / Majorization / positive semidefinite / Spectral norm / trace / Structure theorem of complete local rings / big Cohen-Macaulay modules / Witt ring / Bertini Theorem / p-adic representation / Frobenius map / Homological conjectures / Noetherian local ring / Witt環 / p進展開 / Witt定理 / Bertini定理 / 完備局所環の構造定理 / ホモロジー予想 / ネター局所環 / Holder type inequality / Schur product / unitary rho dilation / 有界線形作用素 / ヒルベルト空間 / Holder型不等式 / Ho^<・・>lder型不等式 / Schur積 / 作用素半径 / ユニタリρ拡大 / CR部分多様体 / 超曲面 / 体様多計統 / 統計はめ込み / アファイン接続 / 部分多様体論 / 微分幾何学 / アファイン微分幾何学 / 部分多様体 / 複素空間形 / ヘッセ断面曲率 / ヘッセ多様体 / 統計多様体 / ブロックの導来同値 / 群のコホモロジー / 群の表現論 / minimally thin / fine topology / Kuramochi boundary / Kuramochi compacitification / Martin boundary / Martin compactification / Riemann surface / Kaehler多様体 / Spencer cohomology / association scheme / 代数的組み合わせ論 / Groebner基底 / 完備局所環 / 複素フィンスラー幾何 / ケーラー空間 / 概複素構造 / フィンスラー幾何学 / dual norm / シュワ-積 Less

Geometry of statistical structures and the submanifold theory
- Principal Investigator
  
  FURUHATA Hitoshi
- Project Period (FY)
  2009 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Hokkaido University
Studies on fusion systems and cohomology of finite groups
- Principal Investigator
  
  OKUYAMA Tetsuro
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Hokkaido University of Education
A Study on Glauberman-Watanabe Correspondence and Derived Equivalence of Blocks
- Principal Investigator
  
  OKUYAMA Tetsuro
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Hokkaido University of Education
A Study on Derived Equivalences of Blocks and Shintani Descent in Group Algebras
- Principal Investigator
  
  OKUYAMA Tetsuro
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Hokkaido University of Education
Research of Matrix Inequalities and Norm Inequalities
- Principal Investigator
  
  OKUBO Kazuyoshi
- Project Period (FY)
  2003 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  HOKKAIDO UNIVERSITY OF EDUCATION
Research of Matrix Inequalities and Norm Inequalities on Matrices Algebra
- Principal Investigator
  
  OKUBO Kazuyoshi
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  HOKKAIDO UNIVERSITY OF EDUCATION
Research of Norm Inequalities on Matices Algebra
- Principal Investigator
  
  OKUBO Kazuyoshi
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  HOKKAIDO UNIVERSITY OF EDUCATION
STUDY OF NOETHERIAN LOCAL RINGS IN COMMUTAIVE ALGEBRA
- Principal Investigator
  
  NISHIMURA Jun-ichi
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Hokkaido University of Education
Research of inequalities of matrix algebra using analytic method
- Principal Investigator
  
  OSADA Masayuki, 大久保和義
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  HOKKAIDO UNIVERSITY OF EDUCATION
複素平面上の単位円内のfine topologyについての研究
- Principal Investigator
  
  長田正幸
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Hokkaido University of Education
可換代数学に於けるネタ-局所環の研究
- Principal Investigator
  
  NISIMURA Jun-ichi
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Hokkaido University of Education
佐々木空間形の超曲面に関する研究Principal Investigator
- Principal Investigator
  
  長谷川和泉
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Hokkaido University of Education
複素多様体上のフィンスラー幾何学の研究
- Principal Investigator
  
  福井昌樹
- Project Period (FY)
  1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Hokkaido University of Education
行列空間上のシュワ-積の誘導ノルムに関する研究
- Principal Investigator
  
  OKUBO Kazuyoshi
- Project Period (FY)
  1991
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Hokkaido University of Education

All 2014 2010 2008 2005 2004 2003 Other

All Journal Article Presentation

[Journal Article] Conformally-projectively flat statistical structures on tangent bundles over statistical manifolds2008
- Author(s)
  Hasegawa Izumi
- Journal Title
  
  Proceedings of the 10th International Conference DGA 2007
  
  Pages: 239-251
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540001
[Journal Article] Infinitesimal holomorphically projective transformations on tangent bundles with complete lift connection2005
- Author(s)
  I.Hasegawa, K.Yamauchi
- Journal Title
  
  Differential Geometry Dynamical Systems 7
  
  Pages: 42-48
- Data Source
  KAKENHI-PROJECT-16540001
[Journal Article] Infinitesimal holomorphically projective transformations on tangent bundles with complete lift connections2005
- Author(s)
  I.Hasegawa, K.Yamauchi
- Journal Title
  
  Differential Geometry Dynamical Systens 7
  
  Pages: 42-48
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540001
[Journal Article] Infinitesimal holomorphically projectice transformation on tnagent bundles with complete lift2005
- Author(s)
  I.Hasegawa, K.Yamaguchi
- Journal Title
  
  Differential Geometry-Dynamical Systems 7
  
  Pages: 42-48
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540001
[Journal Article] Infinitesimal holomorphically projective transformations on Tangent bundles with complete lift connection2005
- Author(s)
  I.Hasegawa, K.Yamauchi
- Journal Title
  
  Differential Geometry-Dynamical Systems (掲載予定)
- Data Source
  KAKENHI-PROJECT-16540001
[Journal Article] Randers spaces of constant flag curvature induced by almost contact metric structures2004
- Author(s)
  I.Hasegawa, Sorin Sabau
- Journal Title
  
  Hokkaido Mathematics Journal 33
  
  Pages: 215-232
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540148
[Journal Article] Randers spaces of constant flag curvature induced by almost contact metric structures2004
- Author(s)
  長谷川和泉, Sorin Sabau etc.
- Journal Title
  
  Hokkaido Mathematics Journal 33
  
  Pages: 215-232
- Data Source
  KAKENHI-PROJECT-15540148
[Journal Article] Randers spaces of constant flag curvature induced by almost contact metric structures2004
- Author(s)
  I.Hasegawa, V.S.Sabau, H.Shimada
- Journal Title
  
  Hokkaido Mathematical Journal 33・1
  
  Pages: 215-232
- Data Source
  KAKENHI-PROJECT-16540001
[Journal Article] Geometric structures on tangent bundles2004
- Author(s)
  I.Hasegawa, K.Yamauchi
- Journal Title
  
  Proceedings of 39-th Symposium on Finsler Geometry
  
  Pages: 1-4
- Data Source
  KAKENHI-PROJECT-16540001
[Journal Article] Randers spaces of constant flag curvature induced by almost contact metric structures2004
- Author(s)
  長谷川和泉(共著Sorin Sabau etc)
- Journal Title
  
  Hokkaido Mathematics Journal 33
  
  Pages: 215-232
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540148
[Journal Article] Contact CR-warped product submanifolds in Sasakian manifolds2003
- Author(s)
  I.Mihai, I.Hasegawa
- Journal Title
  
  Geometriae Dedocata 102
  
  Pages: 143-150
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540148
[Journal Article] Infinitesimal conformal transformations on tangent bundles with the lift metric I+II2003
- Author(s)
  長谷川和泉(共著K.Yamauchi)
- Journal Title
  
  Mathematicae Japonicae 57
  
  Pages: 120-137
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540148
[Journal Article] Infinitesimal conformal transformations on tangent bundles with the lift metric I+II2003
- Author(s)
  I.Hasegawa, K.Yamauchi
- Journal Title
  
  Mathematicae Japonicae 57
  
  Pages: 483-496
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540148
[Journal Article] Infinitesimal project transformations on tangent bundles with lift connections2003
- Author(s)
  I.Hasegawa, K.Yamauchi
- Journal Title
  
  Mathematicae Japonicae 57
  
  Pages: 483-496
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540148
[Journal Article] Infinitesimal holomorphically projective transformations on tangent bundles with complete lift connection
- Author(s)
  長谷川和泉, K.Yamauchi
- Journal Title
  
  Differential Geometry-Dynamical Systems (to appear)
- Data Source
  KAKENHI-PROJECT-15540148
[Presentation] 接バンドル上の正則統計構造2014
- Author(s)
  長谷川和泉
- Organizer
  ミニワークショップ統計多様体の幾何学とその周辺(5)
- Place of Presentation
  北海道大学(札幌市)
- Year and Date
  2014-01-10
- Data Source
  KAKENHI-PROJECT-21540059
[Presentation] Remarks on conformal-projective flatness of tangent bundles with some lift statistical structures2010
- Author(s)
  長谷川和泉
- Organizer
  ミニワークショップ統計多様体の幾何学とその周辺(2)
- Place of Presentation
  北海道大学(札幌市)
- Year and Date
  2010-10-29
- Data Source
  KAKENHI-PROJECT-21540059

1. OKUBO Kazuyoshi (80113661)

# of Collaborated Projects: 10 results

# of Collaborated Products: 0 results
2. SAKURADA Kuninori (30002463)

# of Collaborated Projects: 9 results

# of Collaborated Products: 0 results
3. KOMURO Naoto (30195862)

# of Collaborated Projects: 8 results

# of Collaborated Products: 0 results
4. OSADA Masayuki (10107229)

# of Collaborated Projects: 8 results

# of Collaborated Products: 0 results
5. 福井昌樹 (20002628)

# of Collaborated Projects: 5 results

# of Collaborated Products: 0 results
6. NISIMURA Jun-ichi (00025488)

# of Collaborated Projects: 5 results

# of Collaborated Products: 0 results
7. OKUYAMA Tetsuro (60128733)

# of Collaborated Projects: 5 results

# of Collaborated Products: 0 results
8. YATSUI Tomoaki (00261371)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
9. KITAYAMA Masashi (80169888)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
10. IAI ShinーIchiro (50333125)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
11. 柴田ちょう光 (70042017)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
12. SASAKI Hiroki (60142684)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
13. 菅原健 (20201569)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. FURUHATA Hitoshi (80282036)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. KON Mayuko (70507186)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. MATSUZOE Hiroshi (90315177)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. KUROSE Takashi (30215107)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. 阿部修 (30202659)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

HASEGAWA Izumi 長谷川 和泉

長谷川 和泉 ハセカ゛ワ イズミ

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[Journal Article] Conformally-projectively flat statistical structures on tangent bundles over statistical manifolds2008

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HASEGAWA Izumi 長谷川和泉

長谷川和泉ハセカ゛ワイズミ