English

Switching for 2-designs

Combinatorics 2022-05-11 v2

Abstract

In this paper we introduce a switching for 2-designs. We illustrate this method by applying it to some symmetric (64,28,12) designs. In that way we obtain six new symmetric (64,28,12) designs. Further, we show that this type of switching can be applied to any symmetric design related to a Bush-type Hadamard matrix.

Cite

@article{arxiv.2108.02529,
  title  = {Switching for 2-designs},
  author = {Dean Crnković and Andrea Švob},
  journal= {arXiv preprint arXiv:2108.02529},
  year   = {2022}
}

Comments

15 pages

R2 v1 2026-06-24T04:51:18.217Z