2 citations · 4 across the 17 of their papers we have counts for
4 papers · 2 filters
Arndt compositions: a generating functions approach
Daniel F. Checa, José L. Ramírez
We use generating functions to enumerate Arndt compositions, that is, integer compositions where there is a descent between every second pair of parts, starting with the first and…
Pattern Avoidance in Weak Ascent Sequences
Beáta Bényi, Toufik Mansour, José L. Ramírez
In this paper, we study pattern avoidance in weak ascent sequences, giving some results for patterns of length 3. This is an analogous study to one given by Duncan and Steingrímsso…
Some Connections Between Restricted Dyck Paths, Polyominoes, and Non-Crossing Partitions
Rigoberto Flórez, José L. Ramírez, Fabio A. Velandia +1
A \emph{Dyck path} is a lattice path in the first quadrant of the -plane that starts at the origin, ends on the -axis, and consists of the same number of North-East steps $U…
Descent distribution on Catalan words avoiding ordered pairs of Relations
Jean-Luc Baril, José Luis Ramírez
This work is a continuation of some recent articles presenting enumerative results for Catalan words avoiding one or a pair of consecutive or classical patterns of length . More…