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Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports], 2016, Volume 13, Pages 1249–1257
DOI: https://doi.org/10.17377/semi.2016.13.097
(Mi semr747)
 

This article is cited in 2 scientific papers (total in 3 papers)

Mathematical logic, algebra and number theory

Erdös–Ko–Rado properties of some finite groups

M. Jalali-Rad, A. R. Ashrafi

Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Kashan, Kashan 87317–53153, I. R. Iran
Full-text PDF (472 kB) Citations (3)
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Abstract: Let $G$ be a subgroup of the symmetric group $\mathrm{Sym}(n)$ and $A$ be a subset of $G$. The subset $A$ is said to be intersecting if for any pair of permutations $\sigma, \tau \in A$ there exists $i, 1 \leq i \leq n,$ such that $\sigma(i)=\tau(i)$. The group $G$ has Erdös-Ko-Rado (EKR) property, if the size of any intersecting subset of $G$ is bounded above by the size of a point stabilizer in $G$. The group $G$ has the strict EKR property if every intersecting set of maximum size is the coset of the stabilizer of a point. The aim of this paper is to investigate the EKR and strict EKR properties of the groups $V_{8n}, U_{6n}, T_{4n}$ and $SD_{8n}$.
Keywords: Erdös-Ko-Rado property, finite group.
Funding agency Grant number
University of Kashan 464092/78
The research is partially supported by the University of Kashan under grant number 464092/78.
Received September 22, 2016, published December 23, 2016
Document Type: Article
UDC: 519.157
MSC: 05D05, 20D05, 20D10
Language: English
Citation: M. Jalali-Rad, A. R. Ashrafi, “Erdös–Ko–Rado properties of some finite groups”, Sib. Èlektron. Mat. Izv., 13 (2016), 1249–1257
Citation in format AMSBIB
\Bibitem{JalAsh16}
\by M.~Jalali-Rad, A.~R.~Ashrafi
\paper Erd\"os--Ko--Rado properties of some finite groups
\jour Sib. \`Elektron. Mat. Izv.
\yr 2016
\vol 13
\pages 1249--1257
\mathnet{http://mi.mathnet.ru/semr747}
\crossref{https://doi.org/10.17377/semi.2016.13.097}
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