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Canadian Journal of Mathematics
ISSN: 0008-414X

EISSN: 1496-4279

URL: /core/journals/canadian-journal-of-mathematics
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Volume 29 - Issue 3 - 01 June 1977

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Research Article

Compatible Tight Riesz Orders on the Group of Automorphisms of an 0-2-Homogeneous Set: Addendum
Gary Davis, Colin D. Fox
Published online by Cambridge University Press:

20 November 2018, pp. 664-665
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The purpose of this note is to show that Theorem 8 of Davis and Fox [1] is sharp. That is, we show that the following result is valid.
THEOREM. Let Ω be an 0-2-homogeneous ordered set. Then T ρ(respectively, T ƛ ) is a maximal compatible tight Riesz order if and only if Ω has a countable cofinal(respectively, coinitial) subset.

Split Graphs Having Dilworth Number Two
Stephane Foldes, Peter L. Hammer
Published online by Cambridge University Press:

20 November 2018, pp. 666-672
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All graphs considered in this paper are finite, undirected, loopless and without multiple edges.
The vertex set and the edge set of a graph G will be denoted by V(G) and E(G)y respectively. Thus we have

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Canadian Journal of Mathematics

Journal canadien de mathématiques

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Volume 29 - Issue 3 - 01 June 1977

Research Article

Compatible Tight Riesz Orders on the Group of Automorphisms of an 0-2-Homogeneous Set: Addendum

Split Graphs Having Dilworth Number Two

Canadian Journal of Mathematics

Journal canadien de mathématiques

Refine listing

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Volume 29 - Issue 3 - 01 June 1977

Research Article

Compatible Tight Riesz Orders on the Group of Automorphisms of an 0-2-Homogeneous Set: Addendum

Split Graphs Having Dilworth Number Two