Packings of partial difference sets

J Jedwab, S Li - arXiv preprint arXiv:2012.00979, 2020 - arxiv.org
A packing of partial difference sets is a collection of disjoint partial difference sets in a finite
group $ G $. This configuration has received considerable attention in design theory, finite …

Unimodular perfect and nearly perfect sequences: A variation of Björck's scheme

KT Arasu, MR Clark, JR Hollon - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Constant Amplitude (CA), Zero Auto Correlation (ZAC) sequences (or CAZAC sequences,
aka perfect sequences) have numerous applications. We generalize the CAZAC notion to …

Cyclotomic construction of strong external difference families in finite fields

J Wen, M Yang, F Fu, K Feng - Designs, Codes and Cryptography, 2018 - Springer
Strong external difference families (SEDFs) and their generalizations GSEDFs and
BGSEDFs in a finite abelian group G are combinatorial designs introduced by Paterson and …

[HTML][HTML] Paley type group schemes and planar Dembowski–Ostrom polynomials

YQ Chen, J Polhill - Discrete mathematics, 2011 - Elsevier
In this paper we give some necessary and sufficient conditions for Dembowski–Ostrom
polynomials to be planar. These conditions give a simple explanation of the Coulter …

Paley type partial difference sets in abelian groups

Z Wang - Journal of Combinatorial Designs, 2020 - Wiley Online Library
Partial difference sets with parameters (v, k, λ, μ)=(v,(v− 1)/2,(v− 5)/4,(v− 1)/4) are called
Paley type partial difference sets. In this note, we prove that if there exists a Paley type …

Near-complete external difference families

JA Davis, S Huczynska, GL Mullen - Designs, Codes and Cryptography, 2017 - Springer
We introduce and explore near-complete external difference families, a partitioning of the
nonidentity elements of a group so that each nonidentity element is expressible as a …

New constructions of strongly regular Cayley graphs on abelian non p-groups

K Momihara - Journal of Combinatorial Theory, Series A, 2021 - Elsevier
Davis and Jedwab (1997) established a great construction theory unifying many previously
known constructions of difference sets, relative difference sets and divisible difference sets …

A new product construction for partial difference sets

J Polhill, JA Davis, K Smith - Designs, codes and cryptography, 2013 - Springer
Relatively few constructions are known of negative Latin square type Partial Difference Sets
(PDSs), and most of the known constructions are in elementary abelian groups. We present …

[HTML][HTML] New necessary conditions on (negative) Latin square type partial difference sets in abelian groups

Z Wang - Journal of Combinatorial Theory, Series A, 2020 - Elsevier
Partial difference sets (for short, PDSs) with parameters (n 2, r (n− ϵ), ϵ n+ r 2− 3 ϵ r, r 2− ϵ
r) are called Latin square type (respectively negative Latin square type) PDSs if ϵ= 1 …

New constructions of signed difference sets

Z He, T Chen, G Ge - Designs, Codes and Cryptography, 2024 - Springer
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 …