Presentation 2019-09-06
[Invited Talk] Hadamard-type Matrices on Finite Fields and Some Open Problems
Tetsuya Kojima,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Hadamard matrix is defined as a square matrix where any components are $-1$ or $+1$, and where any pairs of rows are mutually orthogonal. In this work, we consider the similar matrix on finite field $GF(p)$ where $p$ is an odd prime. In such a matrix, every component is one of the integers on $GF(p) ¥backslash ¥{0¥}$, that is, $¥{ 1, 2, ¥ldots, p-1¥}$. Any additions and multiplications should be executed under modulo $p$. In this talk, the methods to generate such matrices and some properties of them are chronologically introduced. Some open problems at this moment are also included.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Hadamard-type matrix / finite field / cyclic group / multiplicative inverse / complete complementary code
Paper # IT2019-31
Date of Issue 2019-08-30 (IT)

Conference Information
Committee IT
Conference Date 2019/9/6(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Yufuin Kenshujo, Nippon Bunri University
Topics (in Japanese) (See Japanese page)
Topics (in English) error correcting codes, general
Chair Jun Muramatsu(NTT)
Vice Chair Tadashi Wadayama(Nagoya Inst. of Tech.)
Secretary Tadashi Wadayama(Saga Univ.)
Assistant Hideki Yagi(UEC)

Paper Information
Registration To Technical Committee on Information Theory
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] Hadamard-type Matrices on Finite Fields and Some Open Problems
Sub Title (in English)
Keyword(1) Hadamard-type matrix
Keyword(2) finite field
Keyword(3) cyclic group
Keyword(4) multiplicative inverse
Keyword(5) complete complementary code
1st Author's Name Tetsuya Kojima
1st Author's Affiliation National Institute of Technology, Tokyo College(NIT, Tokyo College)
Date 2019-09-06
Paper # IT2019-31
Volume (vol) vol.119
Number (no) IT-198
Page pp.pp.29-34(IT),
#Pages 6
Date of Issue 2019-08-30 (IT)