Article ID Journal Published Year Pages File Type
4650534 Discrete Mathematics 2008 9 Pages PDF
Abstract

We give some new Wilf equivalences for signed patterns which allow the complete classification of signed patterns of lengths three and four. The problem is considered for pattern avoidance by general as well as involutive signed permutations.

Keywords
Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
Preview
Wilf classification of three and four letter signed patterns
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