2 search results - page 1 / 1 » A bijection between 2-triangulations and pairs of non-crossi... |
JCT
2007
13 years 4 months ago
2007
A k-triangulation of a convex polygon is a maximal set of diagonals so that no k + 1 of them mutually cross in their interiors. We present a bijection between 2-triangulations of a...
DM
2006
13 years 4 months ago
2006
We complete the enumeration of Dumont permutations of the second kind avoiding a pattern of length 4 which is itself a Dumont permutation of the second kind. We also consider some ...