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On the Erdős–Simonovits–Sós Conjecture about the Anti-Ramsey Number of a Cycle

Published online by Cambridge University Press:  03 December 2003

T Jiang*
Affiliation:
Department of Mathematics and Statistics, Miami University, Oxford, OH 45056, USA
D West*
Affiliation:
Department of Mathematics, University of Illinois, Urbana, IL 61801, USA

Abstract

Given a positive integer n and a family of graphs, let denote the maximum number of colours in an edge-colouring of such that no subgraph of belonging to has distinct colours on its edges. Erdös, Simonovits and Sós [6] conjectured for fixed k with that . This has been proved for . For general k, in this paper we improve the previous bound of to . For even k, we further improve it to . We also prove that , which is sharp.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2003

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Footnotes

Research supported by Miami University Faculty Summer Research Grant.

This material is based upon work supported by the NSA under Award No. MDA904-03-1-0037, which requires the disclaimer that any opinions, findings, and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the NSA.