Sciweavers

JCT
2008

A major index for matchings and set partitions

13 years 4 months ago
A major index for matchings and set partitions
We introduce a statistic pmaj(P) for partitions of [n], and show that it is equidistributed with cr2, the number of 2-crossings, over all partitions of [n] with given sets of minimal block elements and maximal block elements. This generalizes the classical result of equidistribution for the permutation statistics inv and maj.
William Y. C. Chen, Ira M. Gessel, Catherine H. Ya
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2008
Where JCT
Authors William Y. C. Chen, Ira M. Gessel, Catherine H. Yan, Arthur L. B. Yang
Comments (0)