14 citations · 78 across the 33 of their papers we have counts for
Showing 2009Show all
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math.CO2009★ 3 cited
Simple extensions of combinatorial structures
Robert Brignall, Nik Ruskuc, Vince Vatter
An interval in a combinatorial structure S is a set I of points which relate to every point from S I in the same way. A structure is simple if it has no proper intervals. Every com…
math.CO2009★ 1 cited
Grid classes and partial well order
Robert Brignall
We prove necessary and sufficient conditions on a family of (generalised) gridding matrices to determine when the corresponding permutation classes are partially well-ordered. One…
math.CO2009★ 13 cited
Growth rates for subclasses of Av(321)
M. H. Albert, M. D. Atkinson, R. Brignall +3
Pattern classes which avoid 321 and other patterns are shown to have the same growth rates as similar (but strictly larger) classes obtained by adding articulation points to any or…