{"title":"New constructions of signed difference sets","authors":"Zhiwen He, Tingting Chen, Gennian Ge","doi":"10.1007/s10623-024-01389-8","DOIUrl":null,"url":null,"abstract":"<p>Signed difference sets have interesting applications in communications and coding theory. A <span>\\((v,k,\\lambda )\\)</span>-difference set in a finite group <i>G</i> of order <i>v</i> is a subset <i>D</i> of <i>G</i> with <i>k</i> distinct elements such that the expressions <span>\\(xy^{-1}\\)</span> for all distinct two elements <span>\\(x,y\\in D\\)</span>, represent each non-identity element in <i>G</i> exactly <span>\\(\\lambda \\)</span> times. A <span>\\((v,k,\\lambda )\\)</span>-signed difference set is a generalization of a <span>\\((v,k,\\lambda )\\)</span>-difference set <i>D</i>, which satisfies all properties of <i>D</i>, but has a sign for each element in <i>D</i>. We will show some new existence results for signed difference sets by using partial difference sets, product methods, and cyclotomic classes.</p>","PeriodicalId":11130,"journal":{"name":"Designs, Codes and Cryptography","volume":"29 1","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Designs, Codes and Cryptography","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s10623-024-01389-8","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"COMPUTER SCIENCE, THEORY & METHODS","Score":null,"Total":0}
引用次数: 0
Abstract
Signed difference sets have interesting applications in communications and coding theory. A \((v,k,\lambda )\)-difference set in a finite group G of order v is a subset D of G with k distinct elements such that the expressions \(xy^{-1}\) for all distinct two elements \(x,y\in D\), represent each non-identity element in G exactly \(\lambda \) times. A \((v,k,\lambda )\)-signed difference set is a generalization of a \((v,k,\lambda )\)-difference set D, which satisfies all properties of D, but has a sign for each element in D. We will show some new existence results for signed difference sets by using partial difference sets, product methods, and cyclotomic classes.
有符号差集在通信和编码理论中有着有趣的应用。阶为 v 的有限群 G 中的((v,k,\lambda))差分集是 G 中具有 k 个不同元素的子集 D,对于 D 中所有不同的两个元素\(x,y\),表达式\(xy^{-1}\)可以精确地代表 G 中每个非相同元素的 \(\lambda \)次。有符号差集是((v,k,\lambda))差集 D 的广义化,它满足 D 的所有属性,但是 D 中的每个元素都有一个符号。
期刊介绍:
Designs, Codes and Cryptography is an archival peer-reviewed technical journal publishing original research papers in the designated areas. There is a great deal of activity in design theory, coding theory and cryptography, including a substantial amount of research which brings together more than one of the subjects. While many journals exist for each of the individual areas, few encourage the interaction of the disciplines.
The journal was founded to meet the needs of mathematicians, engineers and computer scientists working in these areas, whose interests extend beyond the bounds of any one of the individual disciplines. The journal provides a forum for high quality research in its three areas, with papers touching more than one of the areas especially welcome.
The journal also considers high quality submissions in the closely related areas of finite fields and finite geometries, which provide important tools for both the construction and the actual application of designs, codes and cryptographic systems. In particular, it includes (mostly theoretical) papers on computational aspects of finite fields. It also considers topics in sequence design, which frequently admit equivalent formulations in the journal’s main areas.
Designs, Codes and Cryptography is mathematically oriented, emphasizing the algebraic and geometric aspects of the areas it covers. The journal considers high quality papers of both a theoretical and a practical nature, provided they contain a substantial amount of mathematics.