大连理工大学学报2002,Vol.42Issue(1):17-20,4.
多重集上的Mahonian统计(英文)
The multiset Mahonian statistics
摘要
Abstract
Let M={xa11,…,xamm} be a multiset of cardinality n=a1+a2+…+am, and S(M) denote the set of all permutations of M. In the paper, two combinatorial interpretations of the power qinv(π) are given, where π∈S(M), and inv (π) is the inversion number of π. It means that the famous combinatorial identity has a direct combinatorial proof.关键词
组合学/组合恒等式/Mahonian统计/多重集Key words
combinatorial/combinatorial identities/Mahonian statistic/multiset分类
数理科学引用本文复制引用
冯红..多重集上的Mahonian统计(英文)[J].大连理工大学学报,2002,42(1):17-20,4.基金项目
国家自然科学基金资助项目(19771014) (19771014)
辽宁省科学技术基金资助项目(972208). (972208)