Mathematics – Combinatorics
Scientific paper
2007-01-25
Mathematics
Combinatorics
14 pages, 11 figures
Scientific paper
We introduce a notion of Dyck paths with coloured ascents. For several ways
of colouring, we establish bijections between sets of such paths and other
combinatorial structures, such as non-crossing trees, dissections of a convex
polygon, etc. In some cases enumeration gives new expression for sequences
enumerating these structures.
Asinowski Andrei
Mansour Toufik
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