9 citations · 10 across the 2 of their papers we have counts for
Showing math.COShow all
2 papers · 1 filter
math.CO2007★ 1 cited
Pattern Avoiding Ballot Paths and Finite Operator Calculus
Heinrich Niederhausen, Shaun Sullivan
Counting pattern avoiding ballot paths begins with a careful analysis of the pattern. Not the length, but the characteristics of the pattern are responsible for the difficulties in…
math.CO2007★ 9 cited
Euler Coefficients and Restricted Dyck Paths
Heinrich Niederhausen, Shaun Sullivan
We consider the problem of enumerating Dyck paths staying weakly above the x-axis with a limit to the number of consecutive up steps, or a limit to the number of consecutive down s…