English

Strongly regular generalized partial geometries and associated LDPC codes

Combinatorics 2025-03-19 v1

Abstract

In this paper, we introduce strongly regular generalized partial geometries of grade rr, which generalise partial geometries and strongly regular (α,β)(\alpha,\beta)-geometries. By the properties of quadrics in PG(2,q)(2,q) and PG(3,q)(3,q), we construct two classes of strongly regular generalized partial geometries of grade 33. Besides, we define low-density parity-check (LDPC) codes by considering the combinatorial structures of strongly regular generalized partial geometries and derive bounds on minimum distance, dimension and girth for the LDPC codes.

Keywords

Cite

@article{arxiv.2503.14058,
  title  = {Strongly regular generalized partial geometries and associated LDPC codes},
  author = {Lijun Ma and Changli Ma and Zihong Tian},
  journal= {arXiv preprint arXiv:2503.14058},
  year   = {2025}
}
R2 v1 2026-06-28T22:24:57.638Z