| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 418509 | Discrete Applied Mathematics | 2016 | 9 Pages |
Abstract
Stirling kk-ary words resemble classical Stirling permutations except that all entries of a Stirling kk-ary word of length nn belong to the set {1,2,…,k}{1,2,…,k}. We first study generating functions for the number of pattern restricted Stirling kk-ary words with a given number of plateaux by using the kernel method. We then study the generating function for the number of Stirling kk-ary words of length nn according to the number of distinct letters.
Keywords
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Physical Sciences and Engineering
Computer Science
Computational Theory and Mathematics
Authors
Shi-Mei Ma, Toufik Mansour,