On a Ramsey-type problem of Erdős and Pach

Authors
Publication date 2015
Journal Electronic Notes in Discrete Mathematics
Event The Eight European Conference on Combinatorics, Graph Theory and Applications, EuroComb 2015
Volume | Issue number 49
Pages (from-to) 821-827
Organisations
  • Faculty of Science (FNWI) - Korteweg-de Vries Institute for Mathematics (KdVI)
Abstract Erdős and Pach (1983) asked if there is some constant C>0C>0 such that for any graph G on Ckln k vertices either G or its complement G¯ has an induced subgraph on k vertices with minimum degree at least 1/2(k−1). They showed that the above statement holds with Ck2 in place of Ckln k but that it does not hold with Ckln k/ln lnk. We show that it holds with Ckln2 k, answering their question up to a ln k factor.
Document type Article
Note Proceedings title: The Eight European Conference on Combinatorics, Graph Theory and Applications, EuroComb 2015: Bergen, Norway, August 31 - September 4 Publisher: Elsevier Place of publication: Amsterdam Editors: J. Nešetřil, O. Serra, J.A. Telle
Language English
Related publication On a Ramsey-type problem of Erdős and Pach
Published at https://doi.org/10.1016/j.endm.2015.06.049
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