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.
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Acknowledgements
The authors would like to thank the reviewer for providing helpful suggestions that directed them towards Refs. [15] and [16]. Furthermore, the authors extend their thanks to the associate editor and the anonymous reviewers for valuable comments that have significantly enhanced the quality of this paper. This project was supported by the National Key Research and Development Program of China under Grant 2020YFA0712100 and Grant 2018YFA0704703, the National Natural Science Foundation of China under Grant 11971325, Grant 12231014, Grant 12301429 and Grant 12301430, Beijing Scholars Program, and the Zhejiang Provincial Natural Science Foundation of China under Grant LQ23A010015.
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He, Z., Chen, T. & Ge, G. New constructions of signed difference sets. Des. Codes Cryptogr. (2024). https://doi.org/10.1007/s10623-024-01389-8
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DOI: https://doi.org/10.1007/s10623-024-01389-8