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Monochromatic paths in random tournaments

Bucić, M; Letzter, S; Sudakov, B; (2019) Monochromatic paths in random tournaments. Random Structures & Algorithms , 54 (1) pp. 69-81. 10.1002/rsa.20780. Green open access

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Abstract

We prove that, with high probability, any 2‐edge‐coloring of a random tournament on n vertices contains a monochromatic path of length \Omega(n/ \sqrt{log n}). This resolves a conjecture of Ben‐Eliezer, Krivelevich, and Sudakov and implies a nearly tight upper bound on the oriented size Ramsey number of a directed path.

Type: Article
Title: Monochromatic paths in random tournaments
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/rsa.20780
Publisher version: https://doi.org/10.1002/rsa.20780
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.
Keywords: monochromatic directed path, monochromatic oriented path, Ramsey theory, size Ramsey number
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
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
URI: https://discovery.ucl.ac.uk/id/eprint/10107274
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