Ikuta Takuya 生田卓也

… Alternative Names

生田卓也イクタタクヤ

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Researcher Number	70271111
Other IDs
Affiliation (Current)	2025: 神戸学院大学, 法学部, 教授
Affiliation (based on the past Project Information) *help	2017 – 2022: 神戸学院大学, 法学部, 教授 2013 – 2015: 神戸学院大学, 法学部, 教授
Review Section/Research Field	Principal Investigator Foundations of mathematics/Applied mathematics Except Principal Investigator Basic Section 11010:Algebra-related / Algebra
Keywords	Principal Investigator Haagerup set / Nomura algebra / type-II 行列 / 野村代数 / Bose-Mesner代数 / アソシエーション・スキーム / type-II行列 / 複素アダマール行列 Except Principal Investigator 有限群 / アダマール行列 … More / グラフ / 固有値 / 指標表 / アソシエーション・スキーム / 既約表現 / 置換群 / 代数的組合せ論 / 組合せデザイン / 有限群論 / 代数的組み合わせ論 / 有限置換群 Less

Noncommutative association schemes, coherent algebras, their irreducible decompositions and applications
- Principal Investigator
  
  Akihiro Munemasa
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11010:Algebra-related
- Research Institution
  Tohoku University
Eigenvalues of association schemes and characters of finite groups
- Principal Investigator
  
  Munemasa Akihiro
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Constructions of complex Hadamard matrices using Algebraic Combinatorics and its applicationsPrincipal Investigator
- Principal Investigator
  
  Ikuta Takuya
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Foundations of mathematics/Applied mathematics
- Research Institution
  Kobe Gakuin University

All 2023 2021 2019 2018 2017 2015 2014 2013 Other

All Journal Article Presentation Book

[Book] Algebraic Combinatorics and the Monster Group2023
- Author(s)
  Takuya Ikuta, Akihiro Munemasa
- Publisher
  Cambridge University Press
- ISBN
  9781009338042
- Data Source
  KAKENHI-PROJECT-20K03527
[Journal Article] Bordered Complex Hadamard Matrices and Strongly Regular Graphs2021
- Author(s)
  Takuya Ikuta and Akihiro Munemasa
- Journal Title
  
  IIS
  
  Volume: 27 Issue: 1 Pages: 41-56
- DOI
  10.4036/iis.2020.R.03
- NAID
  130008009393
- ISSN
  1340-9050, 1347-6157
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K03527
[Journal Article] Complex Hadamard Matrices Attached to a 3-Class Nonsymmetric Association Scheme2019
- Author(s)
  Ikuta Takuya、Munemasa Akihiro
- Journal Title
  
  Graphs and Combinatorics
  
  Volume: 35 Issue: 6 Pages: 1293-1304
- DOI
  10.1007/s00373-019-02044-z
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05155
[Journal Article] Complex Hadamard matrices attached to a 3-class nonsymmetric association scheme2019
- Author(s)
  Takuya Ikuta, Akihiro Munemasa
- Journal Title
  
  Graphs and Combinatorics
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05155
[Journal Article] Butson-type complex Hadamard matrices and association schemes on Galois rings of characteristic 42018
- Author(s)
  Takuya Ikuta and Akihiro Munemasa
- Journal Title
  
  Special Matrices
  
  Volume: 6 Issue: 1 Pages: 1-10
- DOI
  10.1515/spma-2018-0001
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05155
[Journal Article] Complex Hadamard matrices contained in a Bose-Mesner algebra2015
- Author(s)
  Takuya Ikuta and Akihiro Munemasa
- Journal Title
  
  Special Matrices
  
  Volume: 3 Pages: 91-110
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25400215
[Journal Article] Nonsymmetric spin models of index 2 on association schemes of small classes2013
- Author(s)
  生田卓也、林坂弘一郎
- Journal Title
  
  神戸学院法学
  
  Volume: 42 Pages: 163-206
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Extended double covers of non-symmetric association schemes of class 22023
- Author(s)
  Takuya Ikuta
- Organizer
  直交デザインと関連する組合せ論
- Data Source
  KAKENHI-PROJECT-20K03527
[Presentation] Bordered complex Hadamard matrices and strongly regular graphs2019
- Author(s)
  生田卓也
- Organizer
  第36回代数的組合せ論シンポジウム
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] Bordered complex Hadamard matrices and strongly regular graphs2019
- Author(s)
  Takuya Ikuta
- Organizer
  International Conference on Algebraic Combinatorics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] Complex Hadamard matrices attached to non symmetric 3-class association schemes2018
- Author(s)
  Takuya Ikuta
- Organizer
  日本数学会秋季大会岡山大学
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] Complex Hadamard matrices coming from association schemes2018
- Author(s)
  Takuya Ikuta
- Organizer
  代数的組合せ論と関連する群と代数の研究
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] Complex Hadamard matries attachhed to 3-class commutative nonsymmtric association schemes2018
- Author(s)
  Takuya Ikuta
- Organizer
  Hadamard Matrices and Applications
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] An approach of construction of complex Hadamard matrices in terms of association schemes2018
- Author(s)
  Takuya Ikuta
- Organizer
  実験計画法ならびに情報数理と関連する組合せ構造
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] Complex Hadamard matrices attached to 3-class nonsymmetric association schemes2018
- Author(s)
  Takuya Ikuta
- Organizer
  The Japanese Conference on Combinatorics and its Applications 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] Butson-type complex Hadamard matrices and association schemes on Galois rings of characteristic 42017
- Author(s)
  Takuya Ikuta
- Organizer
  5th Workshop on Read and Complex Hadamard Matrices and Application
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05155
[Presentation] A complex Hadamard matrix in an odd orthogonal scheme2015
- Author(s)
  生田卓也
- Organizer
  International workshop on Alberaic Combinatorics at ZJU
- Place of Presentation
  中国　浙江大学
- Year and Date
  2015-09-19
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrics attached to some association schemes2015
- Author(s)
  生田卓也
- Organizer
  CanaDAM2015 University of Saskatchewan in Saskatoon
- Place of Presentation
  University of Saskatchewan in Saskatoon
- Year and Date
  2015-06-03
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrices and association schemes2014
- Author(s)
  Takuya IKUTA
- Organizer
  Eighth Shanghai conference on combinatorics
- Place of Presentation
  Shanghai Jiao Tong University
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] The Haargerup set for type-II matrices attached to some association schemes2014
- Author(s)
  Takuya IKUTA
- Organizer
  Japan conference on graph theory and combinatorics
- Place of Presentation
  日本大学文理学部
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Classification of complex Hadamard matrices and association schemes2013
- Author(s)
  生田卓也
- Organizer
  離散数学とその応用研究集会2013
- Place of Presentation
  山形市保健センター・視聴覚室
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrices attached to 3-class symmetric association schemes2013
- Author(s)
  Takuya IKUTA
- Organizer
  Workshop on Algebraic Combinatorics at HEBHU
- Place of Presentation
  Hebei Normal University, China
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] 複素アダマール行列の構成とAssociation schemes2013
- Author(s)
  生田卓也
- Organizer
  第25回有限群論草津セミナー
- Place of Presentation
  草津セミナーハウス
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] The Haargerup set for type-Ⅱ matrices attached to some association schemes
- Author(s)
  Takuya Ikuta
- Organizer
  Japan Conference on Graph Theory and Combinatorics
- Place of Presentation
  日本大学
- Year and Date
  2014-05-17 – 2014-05-21
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrices and association schemes
- Author(s)
  Takuya Ikuta
- Organizer
  The eight Shanghai conference on Combinatorics
- Place of Presentation
  上海交通大学
- Year and Date
  2014-05-24 – 2014-05-28
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrices attached to some association schemes
- Author(s)
  Takuya Ikuta
- Organizer
  CanaDAM2015, Univeristy of Saskatchewan in Saskatoon, SK
- Place of Presentation
  Univeristy of Saskatchewan in Saskatoon
- Year and Date
  2015-06-01 – 2015-06-04
- Invited
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrices coming from 4-class association schemes
- Author(s)
  Takuya Ikuta
- Organizer
  日本数学会春季総合分科会
- Place of Presentation
  明治大学駿河台キャンパス
- Year and Date
  2015-03-21 – 2015-03-24
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrices attached to some association schemes
- Author(s)
  Takuya Ikuta
- Organizer
  日本数学会2014年度秋季総合分科会
- Place of Presentation
  広島大学東広島キャンパス
- Year and Date
  2014-09-25 – 2014-09-28
- Data Source
  KAKENHI-PROJECT-25400215
[Presentation] Complex Hadamard matrices coming from some association schemes of class 4
- Author(s)
  Takuya Ikuta
- Organizer
  Algebraic Combinatorics Workshop at University of Science and Technologies of China
- Place of Presentation
  University of Science and Technologies of China, China
- Year and Date
  2014-11-26 – 2014-11-29
- Data Source
  KAKENHI-PROJECT-25400215

1. MUNEMASA AKIHIRO (50219862)

# of Collaborated Projects: 3 results

# of Collaborated Products: 5 results
2. 野崎寛 (80632778)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. 須田庄 (30710206)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results

Ikuta Takuya 生田 卓也

生田 卓也 イクタ タクヤ

Research Projects

Research Products

Co-Researchers

Noncommutative association schemes, coherent algebras, their irreducible decompositions and applications

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Eigenvalues of association schemes and characters of finite groups

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Constructions of complex Hadamard matrices using Algebraic Combinatorics and its applicationsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Book] Algebraic Combinatorics and the Monster Group2023

Author(s)

Publisher

ISBN

Data Source

[Journal Article] Bordered Complex Hadamard Matrices and Strongly Regular Graphs2021

Author(s)

Journal Title

DOI

NAID

ISSN

Language

Data Source

[Journal Article] Complex Hadamard Matrices Attached to a 3-Class Nonsymmetric Association Scheme2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Complex Hadamard matrices attached to a 3-class nonsymmetric association scheme2019

Author(s)

Journal Title

Data Source

[Journal Article] Butson-type complex Hadamard matrices and association schemes on Galois rings of characteristic 42018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Complex Hadamard matrices contained in a Bose-Mesner algebra2015

Author(s)

Journal Title

Data Source

[Journal Article] Nonsymmetric spin models of index 2 on association schemes of small classes2013

Author(s)

Journal Title

Data Source

[Presentation] Extended double covers of non-symmetric association schemes of class 22023

Author(s)

Organizer

Data Source

[Presentation] Bordered complex Hadamard matrices and strongly regular graphs2019

Author(s)

Organizer

Data Source

[Presentation] Bordered complex Hadamard matrices and strongly regular graphs2019

Author(s)

Organizer

Data Source

[Presentation] Complex Hadamard matrices attached to non symmetric 3-class association schemes2018

Author(s)

Organizer

Data Source

[Presentation] Complex Hadamard matrices coming from association schemes2018

Author(s)

Organizer

Data Source

[Presentation] Complex Hadamard matries attachhed to 3-class commutative nonsymmtric association schemes2018

Author(s)

Ikuta Takuya 生田卓也

生田卓也イクタタクヤ