2022/05/16 by David Callan, Callan, David · 1 citation
Mathematics · Computer Science · #Advanced Combinatorial Mathematics #Advanced Graph Theory Research #Topological and Geometric Data Analysis
paper · pdf · doi:10.48550/arxiv.2205.08277
We give a simple proof that the the number of Dyck paths of semilength n with i returns to ground level and j peaks is the generalized Narayana number (i)/(n) \binomnj \binomn - i - 1j - i.