2 citations · 4 across the 10 of their papers we have counts for
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math.CO2015
Non-ambiguous trees: new results and generalisation
Jean-Christophe Aval, Adrien Boussicault, Berenice Delcroix-Oger +2
We present a new definition of non-ambiguous trees (NATs) as labelled binary trees. We thus get a differential equation whose solution can be described combinatorially. This yield…
math.CO2015
Semi-pointed partition posets and Species
Bérénice Delcroix-Oger
We define semi-pointed partition posets, which are a generalisation of partition posets and show that they are Cohen-Macaulay. We then use multichains to compute the dimension and…