C. Yan

activity

19982007

most citedGenerating functions for moments of the quasi-nilpotent DT-operator

2 citations · 3 across the 4 of their papers we have counts for

collaborators

Showing 2007Show all

2 papers · 1 filter

math.CO2007

Lattice and Schroder paths with periodic boundaries

Joseph P. S. Kung, Anna de Mier, Xinyu Sun +1

We consider paths in the plane with $(1, 0),$ $(0, 1),$ and $(a, b)$ -steps that start at the origin, end at height $n,$ and stay to the left of a given non-decreasing right boundary.…

math.CO2007

A major index for matchings and set partitions

William Y. C Chen, Ira M. Gessel, Catherine H. Yan +1

We introduce a statistic $\pmaj$ on partitions of $[n] = {1, 2, ..., n}$ , and show that it is equidistributed with the number of 2-crossings over partitions of $[n]$ with given sets…