Rchr
J-GLOBAL ID：201601004373785996
Update date: Jan. 05, 2025
Harada Masaaki
ハラダ マサアキ | Harada Masaaki
Affiliation and department：
Job title：
Professor
Homepage URL (2)：
https://www.math.is.tohoku.ac.jp/~mharada/
,
https://www.math.is.tohoku.ac.jp/~mharada/harada.html
Research field (3)：
Algebra
, Applied mathematics and statistics
, Basic mathematics
Research keywords (2)：
Combinatorial coding theory
, Combinatorics
Research theme for competitive and other funds (28)：
- 2023 - 2028 Evolution of Combinatorial Coding Theory
- 2019 - 2024 代数的符号理論の総合的研究
- 2015 - 2019 代数的符号理論の総合的研究
- 2015 - 2018 Graph representations of combinatorial structures
- 2012 - 2018 Various aspects of sporadic simple groups
- 2014 - 2016 組合せデザインと格子によるある自己双対符号の存在問題の解決への試み
- 2011 - 2015 代数的符号理論の新展開を目指して
- 2011 - 2013 長さ72の極値的重偶自己双対符号の構成への試み
- 2008 - 2012 代数的符号理論による組合せ構造の解析と量子符号への応用
- 2008 - 2011 代数的符号理論と組合せデザイン
- 2007 - 2010 Research on algebraic coding theory and its applications for vertex operator algebras
- 2007 - 2010 Study on algebraic or combinatorial structures whose automorphism groups contain finite simple groups
- 2005 - 2008 代数的符号理論と組合せデザイン
- 2005 - 2008 Applications of algebraic methods in coding theory to combinatorial designs and discrete geometry
- 2005 - 2006 Coding theory, the invariant theory for the finite fractional linear transformation groups and their applications to the number theory
- 2003 - 2006 Finite Simple Groups and Related Codes, Lattices and Vertex Operator Algebras
- 2002 - 2005 代数的符号理論と格子、組合せデザイン、および量子符号への応用
- 2005 - 基礎科学研究助成金
- 2002 - 2004 誤り訂正量子符号の有限群論的アプローチ
- 2002 - 2004 A study of the interacting area among the theory of quadratic forms and the theory of modular forms and the algebraic coding theory
- 2001 - 2003 Comprehensive study on Algebraic Combinatorics
- 2000 - 2003 ALGEBRAIC CODING THEORY, COMBINATORIAL DESIGNS AND ASSOCIATION SCHEMES
- 2000 - 2002 有限環上の代数的符号理論と格子および組合せデザインとの関係についての研究
- 2000 - 2002 Finite Simple Groups and Related Codes, Lattices and Vertex Operator Algebras
- 1998 - 2000 代数的符号理論とユニモジュラ格子の研究
- 1998 - 2000 暗号系に現れる群構造について
- 1997 - 2000 Algebraic Coding Theory and the related studies of algebraic, geometric and analytic natures
- 1999 - 有限環上の代数的符号理論と組合せデザインおよびラティスの関係
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Papers (200)：
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Masaaki Harada. A method for constructing quaternary Hermitian self-dual codes and an application to quantum codes. Designs, Codes, and Cryptography. 2024. 92. 10. 2927-2948
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Makoto Araya, Masaaki Harada, Hadi Kharaghani, Ali Mohammadian, Behruz Tayfeh-Rezaie. On the classification of skew Hadamard matrices of order 36 and related structures. Designs, Codes, and Cryptography. 2024. 92. 10. 3049-3062
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T. Aaron Gulliver, Masaaki Harada. IMPROVED LOWER BOUNDS FOR SELF-DUAL CODES OVER F11, F13, F17, F19 AND F23. Advances in Mathematics of Communications. 2024. 18. 5. 1259-1265
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Masaaki Harada, Keita Ishizuka, Hadi Kharaghani. Ternary Extremal Four-Negacirculant Self-Dual Codes. Graphs and Combinatorics. 2024. 40. 3
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Masaaki Harada, Keita Ishizuka. Hadamard matrices of order 36 formed by codewords in some ternary self-dual codes. Discrete Mathematics. 2024. 347. 1
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Lectures and oral presentations (9)：
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On the nonexistence of certain extremal doubly even self-dual codes
(2016)
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On a 5-design related to an extremal doubly even self-dual code of length 72
(Workshop on Hadamard Matrices and Combinatorial Designs 2014)
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情報通信を支える1つの数学~誤り訂正符号という組合せ構造~
(第55回情報科学談話会 2014)
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非線形2元符号と Z4 符号 〜Nordstrom-Robinson 符号を例に〜
(応用数学連携フォーラム 2014)
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On the residue codes of self-dual Z4-codes with large minimum Lee weights
(金沢組合せ論セミナー 2014)
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Professional career (1)：
- 博士(理学) (Okayama University)
Committee career (4)：
- 2015/03 - 2016/02 日本数学会 地方区代議員
- 2015/03 - 2016/02 日本数学会 地方区代議員
- 2014/03 - 2015/02 日本数学会 全国区代議員
- 2014/03 - 2015/02 日本数学会 全国区代議員
Awards (1)：
- 2005/03 - The Institute of Combinatorics and its Applications Hall medal
Association Membership(s) (2)：
The Institute of Combinatorics and its Applications
, 日本数学会
