HARASAWA Ryuichi 原澤隆一

Researcher Number	10363467
Other IDs
External Links
Affiliation (Current)	2025: 長崎大学, 総合生産科学研究科(情報データ科学系), 准教授
Affiliation (based on the past Project Information) *help	2014: 長崎大学, 工学研究科, 助教 2012 – 2013: 長崎大学, 工学(系)研究科(研究院), 助教 2003: Nagasaki Univ., Faculty of engineering, Assistant, 工学部, 助手
Review Section/Research Field	Except Principal Investigator General mathematics (including Probability theory/Statistical mathematics) / Fundamental theory of informatics
Keywords	Except Principal Investigator Jacobian group / Information Security / Discrete Logarithm / Non Singular Curve / 整数論 / 楕円曲線 / Index Calculus / 情報セキュリティ / 代数曲線 / ヤコビアン群 … More / 位数計算 / 離散対数問題 / 非特異代数曲線 / ブレイク間隔の最大値 / 敵味方表 / ブレイク間隔列 / ホーム・アウェー / スケジューリング / 総当たりリーグ戦 Less

Study of the mathematical structure of round-robin tournaments and the development of efficient scheduling of fair tournaments
- Principal Investigator
  
  SUEYOSHI Yutaka
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  Nagasaki University
Discrete Logarithm Problem Nd Information Security
- Principal Investigator
  
  SUZUKI Joe
- Project Period (FY)
  2001 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Osaka University

All 2014 2013 2012 Other

All Journal Article Presentation

[Journal Article] Theoretical Comparison of Root Computations in Finite Fields2014
- Author(s)
  R. Harasawa, Y. Sueyoshi and A. Kudo
- Journal Title
  
  IEICE Trans. Fundamentals
  
  Volume: E97.A Issue: 6 Pages: 1378-1381
- DOI
  10.1587/transfun.E97.A.1378
- NAID
  130004770867
- ISSN
  0916-8508, 1745-1337
- Language
  English
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24650009
[Journal Article] On equitable round-robin tournaments with maximal break interval greater than or equal to 52014
- Author(s)
  Y. Sueyoshi, R. Harasawa and A. Kudo
- Journal Title
  
  Far East Journal of Applied Mathematics
  
  Volume: 86 Pages: 57-91
- NAID
  120006986718
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24650009
[Journal Article] FOREWORD2013
- Author(s)
  Q.　Zhao, S. Yamada, Y. Nakamoto, K. Yamamura, M. Iwata and M. Kai
- Journal Title
  
  IEICE Trans. Fundamentals
  
  Volume: E96.A Issue: 1 Pages: 1-1
- DOI
  10.1587/transfun.E96.A.1
- NAID
  10031167082
- ISSN
  0916-8508, 1745-1337
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24500045, KAKENHI-PROJECT-24650009
[Journal Article] Improving the Berlekamp algorithm for binomials x^n - a2012
- Author(s)
  R. Harasawa, Y. Sueyoshi and A. Kudo
- Journal Title
  
  Lecture Notes in Computer Science
  
  Volume: 7369 Pages: 225-235
- NAID
  120006985449
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24650009
[Presentation] ホーム・アウェーの別がある総当たりリーグ戦の公平なスケジュール作成について
- Author(s)
  末吉豊，原澤隆一，工藤愛知
- Organizer
  日本数学会 2012年度秋季総合分科会応用数学分科会
- Place of Presentation
  九州大学伊都キャンパス
- Data Source
  KAKENHI-PROJECT-24650009
[Presentation] Improving the Berlekamp algorithm for binomials x^n - a
- Author(s)
  R. Harasawa, Y. Sueyoshi and A. Kudo
- Organizer
  International Workshop on the Arithmetic of Finite Fields (WAIFI 2012)
- Place of Presentation
  Ruhr-Universitat, Bochum, Germany
- Data Source
  KAKENHI-PROJECT-24650009
[Presentation] ホーム・アウェーの別がある公平な総当たりリーグ戦のブレイク間隔の最大値について (II)
- Author(s)
  末吉豊，原澤隆一，工藤愛知
- Organizer
  日本数学会 2013年度秋季総合分科会応用数学分科会
- Place of Presentation
  愛媛大学城北キャンパス（松山市）
- Data Source
  KAKENHI-PROJECT-24650009
[Presentation] ホーム・アウェーの別がある公平な総当たりリーグ戦のブレイク間隔の最大値について
- Author(s)
  末吉豊，原澤隆一，工藤愛知
- Organizer
  日本数学会 2013年度年会応用数学分科会
- Place of Presentation
  京都大学吉田キャンパス
- Data Source
  KAKENHI-PROJECT-24650009
[Presentation] A remark on the computation of r-th roots in finite fields
- Author(s)
  原澤隆一，末吉豊，工藤愛知
- Organizer
  日本応用数理学会2012年度年会 JANT オーガナイズド・セッション「数論アルゴリズムとその応用」
- Place of Presentation
  稚内全日空ホテル
- Data Source
  KAKENHI-PROJECT-24650009

1. SUEYOSHI Yutaka (80128040)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
2. KUDO Aichi (00112285)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
3. SUZUKI Joe (50216397)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. OGAWA Hiroyuki (70243160)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. IBUKIYAMA Tomoyoshi (60011722)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. YAMAMOTO Yoshihiko (90028184)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. FUJIWARA Tohru (70190098)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

HARASAWA Ryuichi 原澤 隆一

Research Projects

Research Products

Co-Researchers

Study of the mathematical structure of round-robin tournaments and the development of efficient scheduling of fair tournaments

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Discrete Logarithm Problem Nd Information Security

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Theoretical Comparison of Root Computations in Finite Fields2014

Author(s)

Journal Title

DOI

NAID

ISSN

Language

Data Source

[Journal Article] On equitable round-robin tournaments with maximal break interval greater than or equal to 52014

Author(s)

Journal Title

NAID

Data Source

[Journal Article] FOREWORD2013

Author(s)

Journal Title

DOI

NAID

ISSN

Language

Data Source

[Journal Article] Improving the Berlekamp algorithm for binomials x^n - a2012

Author(s)

Journal Title

NAID

Data Source

[Presentation] ホーム・アウェーの別がある総当たりリーグ戦の公平なスケジュール作成について

Author(s)

Organizer

Place of Presentation

Data Source

[Presentation] Improving the Berlekamp algorithm for binomials x^n - a

Author(s)

Organizer

Place of Presentation

Data Source

[Presentation] ホーム・アウェーの別がある公平な総当たりリーグ戦のブレイク間隔の最大値について (II)

Author(s)

Organizer

Place of Presentation

Data Source

[Presentation] ホーム・アウェーの別がある公平な総当たりリーグ戦のブレイク間隔の最大値について

Author(s)

Organizer

Place of Presentation

Data Source

[Presentation] A remark on the computation of r-th roots in finite fields

Author(s)

Organizer

Place of Presentation

Data Source

HARASAWA Ryuichi 原澤隆一