Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
A note on the linear cycle cover conjecture of Gyárfás and Sárközy - MaRDI portal

A note on the linear cycle cover conjecture of Gyárfás and Sárközy (Q1753119)

From MaRDI portal
scientific article
Language Label Description Also known as
English
A note on the linear cycle cover conjecture of Gyárfás and Sárközy
scientific article

    Statements

    A note on the linear cycle cover conjecture of Gyárfás and Sárközy (English)
    0 references
    0 references
    0 references
    0 references
    25 May 2018
    0 references
    Summary: A linear cycle in a \(3\)-uniform hypergraph \(H\) is a cyclic sequence of hyperedges such that any two consecutive hyperedges intersect in exactly one element and non-consecutive hyperedges are disjoint. Let \(\alpha(H)\) denote the size of a largest independent set of \(H\). We show that the vertex set of every \(3\)-uniform hypergraph \(H\) can be covered by at most \(\alpha(H)\) edge-disjoint linear cycles (where we accept a vertex and a hyperedge as a linear cycle), proving a weaker version of a conjecture of \textit{A. Gyárfás} and \textit{G. Sárközy} [Electron. J. Comb. 21, No. 2, Research Paper P2.36, 10 p. (2014; Zbl 1300.05199)].
    0 references
    loose cycles
    0 references
    covering
    0 references
    independence number
    0 references

    Identifiers