On the EKR Module property
Combinatorics
2024-04-17 v2
Abstract
In the recent years, the generalization of the Erd\H{o}s-Ko-Rado (EKR) theorem to permutation groups has been of much interest. A transitive group is said to satisfy the EKR-module property if the characteristic vector of every maximum intersecting set is a linear combination of the characteristic vectors of cosets of stabilizers of points. This generalization of the well-know permutation group version of the Erd\H{o}s-Ko-Rado (EKR) theorem, was introduced by K. Meagher. In this article, we present several infinite families of permutation groups satisfying the EKR-module property, which shows that permutation groups satisfying this property are quite diverse.
Keywords
Cite
@article{arxiv.2207.05947,
title = {On the EKR Module property},
author = {Cai Heng Li and Venkata Raghu Tej},
journal= {arXiv preprint arXiv:2207.05947},
year = {2024}
}
Comments
Revised and trimmed for better readability. To appear in Algebraic Combinatorics