Hostname: page-component-7479d7b7d-68ccn Total loading time: 0 Render date: 2024-07-10T11:11:25.350Z Has data issue: false hasContentIssue false

Tournaments and Orders with the Pigeonhole Property

Published online by Cambridge University Press:  20 November 2018

Anthony Bonato
Affiliation:
Department of Mathematics, Wilfrid Laurier University, Waterloo, ON, N2L 3C5, email: abonato@wlu.ca
Peter Cameron
Affiliation:
School of Mathematical Sciences, Queen Mary and Westfield College, London E1 4NS, U.K., email: P.J.Cameron@qmw.ac.uk
Dejan Delić
Affiliation:
Department of Mathematics and Statistics, McMaster University, Hamilton, ON, L8S 4K1, email: delicd@math.mcmaster.ca
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A binary structure $S$ has the pigeonhole property $\left( P \right)$ if every finite partition of $S$ induces a block isomorphic to $S$. We classify all countable tournaments with $\left( P \right)$; the class of orders with $\left( P \right)$ is completely classified.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 2000

References

[1] Bonato, A. and Delić, D., A pigeonhole principle for relational structures. Mathematical Logic Quarterly 45 (1999), 409413.Google Scholar
[2] Cameron, P. J., Oligomorphic Permutation Groups. London Math. Soc. Lecture Notes 152, Cambridge University Press, Cambridge, 1990.Google Scholar
[3] Cameron, P. J., The random graph. In: Algorithms and Combinatorics, Springer Verlag, New York 14 (1997), 333351.Google Scholar
[4] Rosenstein, J. G., Linear orderings, Academic Press, New York, 1982.Google Scholar