English

3-Designs from PSL(2,q) with cyclic starter blocks

Combinatorics 2025-12-16 v2 Group Theory

Abstract

We consider when the projective special linear group over a finite field defines a 33-design with a cyclic starter block. We will show that the equivalences of the existence of such 33-(q+1,5,3)(q+1,5,3) and 33-(q+1,10,18)(q+1,10,18) designs for a prime power q1(mod20)q\equiv 1\pmod{20}, and 33-(q+1,13,33)(q+1,13,33) and 33-(q+1,26,150)(q+1,26,150) designs for a prime power q1(mod52)q\equiv 1\pmod{52}, respectively.

Keywords

Cite

@article{arxiv.2502.13331,
  title  = {3-Designs from PSL(2,q) with cyclic starter blocks},
  author = {Akihide Hanaki and Kenji Kobayashi and Akihiro Munemasa},
  journal= {arXiv preprint arXiv:2502.13331},
  year   = {2025}
}
R2 v1 2026-06-28T21:49:28.852Z