UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

An improvement on Łuczak's connected matchings method

Letzter, Shoham; (2022) An improvement on Łuczak's connected matchings method. Bulletin of the London Mathematical Society , 54 (2) pp. 609-623. 10.1112/blms.12587. Green open access

[thumbnail of Letzter_matchings.pdf]
Preview
Text
Letzter_matchings.pdf

Download (357kB) | Preview

Abstract

A connected matching in a graph G is a matching contained in a connected component of G. A well-known method due to Łuczak reduces problems about monochromatic paths and cycles in complete graphs to problems about monochromatic connected matchings in almost complete graphs. We show that these can be further reduced to problems about monochromatic connected matchings in complete graphs. We illustrate the potential of this new reduction by showing how it can be used to determine the 3-colour Ramsey number of long paths, using a simpler argument than the original one by Gyárfás, Ruszinkó, Sárközy, and Szemerédi (2007).

Type: Article
Title: An improvement on Łuczak's connected matchings method
Open access status: An open access version is available from UCL Discovery
DOI: 10.1112/blms.12587
Publisher version: https://doi.org/10.1112/blms.12587
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
URI: https://discovery.ucl.ac.uk/id/eprint/10148495
Downloads since deposit
47Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item